Thanks for this informative video! I have a question regarding ported speakers: What do you think of sealing a ported speaker with foam plugs? Some manufacturers ship foam plugs with their speakers and recommend to play with them depending on the positioning. But if I understand the theory you explained correctly, sealing a ported speaker might not be ideal as you mention woofers are more suited for certain designs depending on their Q factor. Is this correct? Personally, I've owned a pair of speakers which excited modes in the room I used them in. Putting the foam plugs into the ports certainly helped reducing this boomy bass response and I prefered it over the ported (open) operation back then. The reason I'm asking this now, is that I have small bookshelf speakers now to which I'd like to add one or two subwoofers and I was thinking about sealing the ports so the subwoofer(s) take care of the lower frequencies. But the manufacturer of these speakers doesn't ship foam plugs with the speakers so I'm not sure whether they're actually suited for this kind of operation.
Hi Timo, that is an excellent question. Plugging ports will change the loading of the bass driver to mimic a sealed system but it doesn’t miraculously turn a ported design into a sealed design. Remember, the bass driver was selected by the designer to work in a ported enclosure. It will have T/S parameters, yes, including the damping (Q), but other parameters as well to work optimally in a ported enclosure. Subsequently, plugging ports will shift the tonal balance of the speaker. You will get less bass output at the resonant frequency of the port and overall the bass will roll off earlier but less steeply as per a sealed box design. Plugging ports can be beneficial if you have boomy bass in your room but it is like putting a band aid on a deep wound. It is masking a more fundamental problem. There are two reasons why you get boomy bass. The speaker is too large and has too much bass output for the room, exciting room modes. The second reason is that the speaker is too close to wall boundaries so you are getting too much low frequency bass reinforcement. You are much better dealing with the fundamental issue and either moving your speaker away from walls or changing the speaker. Finally, now that you have changed your floor standing speakers to monitors, I wouldn’t plug the ports for the reasons I mentioned above. Adding subwoofers is a good idea, one good, two better! It is not about more bass, although they will extend the bass response of your system. The main benefit is that you are going from two bass sources in your room to four bass sources. This will help even out room modes in your room, resulting in a more even bass response. Thank you for watching 😉👍
Timo S. i would not get too hung up on theory. Try plugged and unplugged and go for whatever sounds best to your ears. This is all that matters in the end.
i have filled the port with straws the same length of the port this helps to clean up the bass is the port on the front or back and how many bass drives does it have and size and how big is your room this can tell us what is the problem
My speakers came with three foam bungs per speaker (as there are three ports per speaker), giving a bit of tunability, but to be honest I've never experimented with them. Maybe I should! Great channel btw :)
That was probably the best and most easily understandable explanation of the ins and outs of speakers, enclosures, and their workings. You should honestly write a book in regards to all aspects of HiFi. You’re also very well spoken, which is extremely appreciated. Thanks very much, Tarun!
I 2nd that hole heartedly,excellent explanation once again. Where have you been all our hifi/audiophile lifes?! PS.Have you thought of buying/reviewing a turntable any further,it would be intriguing to hear/see your views on the format....no pressure(lol)? #hifi4ever
ev Lol “where have you been...” Haha! I’m a vinyl guy too, and would love to see the same, but not sure Tarun is into vinyl, but it’s worth at least asking. Tarun, do you own/use a turntable/listen to vinyl? See, now we both asked. lol
You always strike the perfect balance of presenting technical enough information to provide a real understanding of the subject, and keeping it understandable for the masses. Thank you for the education!
Thank you Steven. That is always very much at the forefront of my mind when I do these type of videos. Hopefully, I get the balance right but I can’t be sure until I put the video out there. I appreciate you watching and your support 😉👍
This is incredibly informative and really something I've been wanting to understand and noone seem to lay everything out in easily digestible and well articulated explanation like this. Big thank you! Truly quality content you're producing here.
Excellent explanations - clear, concise, interesting details without getting boring. I hope you can do more of this type of video. I also really like how you stay away from getting bogged down with specs and too much in the way of minute details. Great work !!!
God bless you Tarun! This explain why building a speaker from scratch is much harder than it seems. No principles or design is perfect, as you demonstrate it quite thoroughly, but a choice must be made according to our priorities (size, bass extension or transient response). I think the best way to go about it is to make several prototypes and to listen to see which one sounds the best. The audiophile community needs this kind of technical information to help in the selection of the best speakers for their need. Definitively one of the best video on Hi-Fi to date. Congratulations!
Thanks for an excellent overview of bass loading techniques. I went to a transmission line speaker 30 years ago, and have zero urge to go back to conventional bass loading. Deep, clear, dynamic bass is an excellent foundation for the whole system. The lack of internal speaker resonance also benefits vocal clarity and imaging. It's such a wonderful design. More manufacturers should pursue the TL.
I have only come across a very select few reviewers that actually give all the time and nuance to these topics that they deserve. It's either really all subjectivity/hype "don't forget to check my affiliate links for all 500 things mentioned in this video" or schilly/entertainment type deals. Really glad I found this channel. Great job describing and long form delivery that isn't boring or drawn out but enough to really break it all down. This is extremely helpful, rather than having to piece together everything on ones own through 5 different reviews and 8 forum threads. 👍
Very clear and informative Tarun. I always wanted to know the pros and cons and reasons for different enclosures speakers. Ported, sealed and passive radiators. Now I got it. Thanks for explaining it in detail and in an easy understandable way.
Thank you. A wonderful explanation of the types of speaker enclosures. As a lecturer in electronics I am particularly impressed with your structure & technical grasp .I have to grade two dozen project vivas each year so I should know I guess..keep up the good work
As others have said, these videos are very well made and very useful. You concisely explain the differences very well, ackowledging that all hifi is about compromises. Every design has advantages and disadvantages, although that's not to say they are all equal. Cost naturally is a big factor at work. Keep up the good work Tarun!
Thanks for the clear explanation. About 40 years ago I constructed a pair of transmission line speakers. The design was in Wireless World by a Dr Bailey. I used KEF B139 and T15 drivers and a filling of long fibre wool. They sounded terrific. At the time They were a bit large for our small room so I sold them and bought a pair of B&Ws DM4s which sounded lifeless in comparison. I now have floor standing full range electrostatics made here in Australia by E R Audio. In a totally different league to any box speaker I have ever heard.
Remember the wonderful B139 kits, Superb bass when not sitting on the floor. Was looking at KEFs, Gale, Bose and B&W back in 1981, yes they all sounded different but all were very good. Ended with DM6, transmission line KEFs would have sounded good. But sitting the bass driver on the floor with a fluffy carpet made them sound very ordinary. I can understand your feelings over the DM4. Ah the good old days. Excellent video, make sense, and you can hear the difference.
Greg O'Neil Personally I was glad to see the back of vynil. Remarkably good for a bit of rock scraping on a plastic disc. Walk into the local electronics store and there is a row of turntables! I think to myself “your welcome to it!”.
I had a colleague who built the exact same design, the B139 meant it was always going to end up big, but these took some moving. He did them in Ply-Wood stained brown. They were a excellent design for the day.
Yes I have to agree with nick pantazi very clear and informative.having this much information would make it so much easier to choose the type of speakers or piece of hifi that would suit the individual.again another great vlog .I could listen to you all day. Massive thumbs up 👍
Thank you James. I appreciate you watching, taking the time to comment on the video and your kind words of support. I was a bit concerned about overloading with information on this video. I hope I didn’t go overboard 😉👍
I sincerely enjoyed your explanation of these different speaker formats. I have a 30 year old pair of acoustically suspended NHT 2.3a speakers that I continue to appreciate. A transmission line speakers has always interested me I have a Bose wave radio the works on the transmission line theory. I would love to demo some PMC speakers. Love the channel sir, please continue to share your knowledge!
Great video and well explained. I own IMF-RSPM [rebuilt, upgraded and restored] which Tarun as you might well know are a British speaker from the 70's and extremely well thought out design and sound fantastic. 2 weeks ago I took delivery of my new speakers from a local speaker company who built my custom bookshelf speaker [4ohm] which is a transmission design that is ported using 7.5" Satori driver, 5.5" mid, 25mm tweeter and the sound is incredibility clear and soundstage is dead centre and it hits 30Hz - 40kHz. Mind you it is a very large cabinet and looks like a large ATC speaker. I have this matched to a vintage Luxman R-1120 which has a dedicated 4ohm [240wpc] speaker output terminals. I think I have found my forever stereo system after 40 years. Keep up the great work with the videos, you are my favourite audio channel on you-tube. I just brought some Ferrite Cores that you mentioned in your previous video that I will put on my speaker leads so thanks for the tip. Cheers.
Thank you Mr Australia sound like a great system. Their is something special about transmission line speakers done correctly 👍. Thank you for watching and sharing your experiences 😉
Thankyou for the guidance, you’re turning out to be a guru of audio, plz make a similar video focusing on high frequencies & different types of tweeters.
@@abritishaudiophile7314 Hi , You would not believe what I have found the plastic around the back of the Tweeter is split and the magnet has come off the Planted it’s off on the back of the bass driver unit, I wish I could send you a picture but I don’t know how to I do not have your email address to send it. I have managed to re-secure the magnet but it’s only held in by three clips where it should be four , So they are both up and running but what I’m going to do is see whether I can get a new pair of tweeter’s drivers for them, And the noise is coming from the streaming Bluetooth device obviously creating interference so hopefully when I purchase my new amp it well hopefully come with it built-in or I will buy a new device for streaming, At least at the moment they’re working and I’ll find out what the cost of a new pair of drive units , Thank you for help, PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE.
@@abritishaudiophile7314 yes 👍, They are a Funny shape I got 4 flat sides on it, I think I’ll have to try and contact vocal them self, I have been using a company in the Netherlands who seem to be very helpful I’ve got my seas drivers from there, I will let you know how I get on, Thank you once again all the best for now, PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE.
About 8 years ago managed to acquire a pair of TDL Studio 3 proper transmission line speakers of the John Wright era and not Richer sounds. These I believe are the mk1 version so a fair age and in desperate need of an overhaul. Cabinets need touched up and crossovers and internal wiring upgraded. Despite all this never had speakers effortlessly go so low and move air in the room. Just found your channel tonight, def thumbs up for your style and presentation.
Thank you Tarun for a most informative and cleverly presented video on speaker designs. Room interaction could as always be the determining factor of preference as to design. In my case after a life long interest in hifi and music I have ended up with PMCs as my end-game speakers for the very reasons you rightfully pointed out. Keep them coming 👍🏼 and all the best Peter
Thanks for another informative video tarun. Really interesting, I was glad to see your conclusion matched what I already thought was the answer transmission line. I only know this from a demo of PMC twenty I heard several years ago, me & my brother in law were blown away by the clean extended bass I didn’t buy them but definitely would consider PMC in the future.
Thanks for a very informative video, I still own a pair of TDL RTL 2's which are transmission line, which still sound good today, this is probably why I gravitate to PMC.
Us of us in the know are really in the know. Tarun you have Celestion 300 transmission lines and love Exposure amps one side of the world (UK). I run PMC's and power them with Exposure amps in Australia. Had this setup before I saw your first video. PMC and Exposure are magic together!
Thanks, I'm enjoying your videos. And this one made me feel especially good since I still love my 40 yr old tramission line Toby Speakers, out of Ft Worth, TX. They seem to get better with age.
Enjoyed this video a lot, it is refreshing and nice to see a British Audiophile on you tube. Not that I’ve got anything against Americans, just feel the British have got a lot to offer as well.
Very clear, concise explanation of the different speaker designs. Through the years I have tried my hand at three of these designs. Started with accoustic suspension then moved to base port and finally transmission line. I have to agree that the transmission line is by far the more difficult to get right but worth it in the end. Being a Mechanical Engineer by trade I was always fascinated by the mechanical aspect of speaker design. I think you mentioned that mechanical damping had to do with the stiffness of the surround and the voice coil suspension but my impression is that this has more to do with compliance while damping usually has to do with the ability to dissipate/absorb energy in a mass/spring/damper system. Of course cone mass, stiffness and damping all work together. I think a stiffer suspended cone would tend to have less effective damping. Also heavier cones would require more damping to stop oscillating quick;y. Just a minor point. It has been my impression that mechanical damping is less important that electrical damping. A low Qe (electrical damping coefficient) is usually associated with a strong voice coil magnetic field interaction which improves the transient response of a speaker (voice coil starts and stops moving abruptly with the signal). Mechanical damping, on the other hand helps stop the woofer movement after the signal stops but makes it a little slower to pick up at the start of the signal. I believe low mass is also beneficial in improving transient response as the lower inertia makes it easier for the speaker cone to start and stop vibrating with the signal. I enjoyed your video and I agree with your assessment of the different designs. I would like to hear more of your talks so I am subscribing to your channel.
Hi Jim, thank you for watching and supporting the channel. It is very much appreciated. I am also grateful that you shared your knowledge and experiences. Very informative 😉👍
It is actually, bleeding inconvenient given that I am trying to get manufacturers to send me equipment to review at the moment but what can I do?...😪 Lol 😊😊
@@abritishaudiophile7314 As you pointed out , there are trade offs. Yes, all fine speakers! This review was specifically about bass performance, as per, speaker enclosure design. I, for one, appreciated your candor and knowledgeable comparisons. Bass, is only one reason to consider. Subwoofers were made, to fill the bass void ! Your review...Spot on!
Another excellent video. Whilst I appreciate that you can’t possibly cover every speaker design, it is, I think worth mentioning that many ported, or bass reflex designs are today supplied with port bungs, which can be used to seal, or partially seal the port, or ports. Whilst this does not make the cabinet perform like a sealed box, it can go a long way to tune the bass to your room and help tighten the timing. Tuning the bass to your room can be very effective if you don’t have the capacity to pull your speakers away from the wall behind them!
Such an interesting and excellently communicated explanation of speaker design. I have always preferred floor standing speakers but didn't know about transmission being different from from front ported. My Tannoy XT8F i think are just clever front ported.
Hi B Shah, good to hear from you. Your tannoys are a ported design but the port is at the bottom of the enclosure. They a very good dual concentric design. Thank you for sharing and supporting this channel 😉👍
Thank you Shahid. You are right, it does. It is deciding what to include, what to leave out and how you can get the message across without it becoming a science/engineering tutorial. I appreciate your support 😉👍
I commend you for including a transmission line design. I've built three different versions over the years, two of which used speakers that came with no info and were used based on the suspension type of the cones.. all three reproduced double bass exceptionally well. Two designs were similar to your Celestions one being vented to the rear and one design being vented to the front.. the third design was much shorter and much deeper front to back.
Wow! What an excellent summary and explanation. I fully agree with you about the benefits of the Transmission line having owned a pair of IMFs some forty years ago. I also agree with your comments about bass being only part of the equation- so the IMFs got dumped!
Smashed it yet again Tarin. Must admit the Proac 1's look the classiest of all there. There's a lot more to speaker design than people realise and you have explained it very well. Passive radiator if done correctly seems to be the best design, but I do like a front or bottom ported (modern Proac design) design for placement in a small room Thanks for sharing.
Hi Steve, good to hear from you buddy. I think you can’t beat a good transmission line if done right. That is a big if! I agree with you, the Proacs look the best. Sound mighty fine too. 😉👍
@@abritishaudiophile7314 talking about the Proac's I've listened to the D2's a few times and every time they just make me smile with their superb sound. Lovely bass/ mid range for a stand mount speaker and sweet treble. Have you ever heard them and what's your thoughts?
This is a fantastic video with lots of of technical information. I feel a follow up video could be made on the mid-range and treble merits of these various speakers. therefore giving an overall assessment of the speakers, and It would be interesting to see which one comes out on top (Proac Response 1SC? lol). Although I appreciate how much our various musical tastes, room topography, and partnering equipment can have on the overall assessment.
Wow! Very educational and succinct. I have to say I wasn't expecting the depth this short intro into speaker design goes into. A very good exposition, albeit detailed, of the fundamentals that one has to grasp through before getting to the punchline in the end. For the wannabe audiophile, who would like to make an informed choice before a significant purchase, it is as short and informative as the subject allows. On the rather more trivial side of things (the other end of the spectrum opposite your run-of-the-mill audiophile) I find it amazing how many people out there expect to have good bass without the associated speaker volume. In fact, to some people, good bass is nothing at all close to what is described here. Hardly surprising nowadays when most people's only question when buying a speaker is "has it got Bluetooth"? While these people are not audiophiles, having been raised listening to midis, micros and mp3 players through earbuds, the misconception they hold on to so dearly is often found across the spectrum of listeners - and, case in point, the uninformed audiophiles. So, what is good bass needs to be defined for the individual listener ahead of the design choice. Simply put, some people like their bass flabby or they like pronounced midbass (because that's what they've grown up listening to) and don't care about extension - in fact they don't like it. Grasping the fundamentals, and in particular that clean extended undistorted bass is equivalent to large speaker volume, constantly goes amiss. They just don't want to know. So they train themselves to like bass that's not true. There is of course a portion of honest audiophiles that don't have extended bass on their requirements' list. This review concentrates in medium to small sized speakers with the transmission line being the exception on account that there aren't any small sized transmission lines in the market. Understandable as it didn't make any market sense to make the small ones in the past as they would cost more to make than their bigger, better siblings. (Having said that, I think I've seen a molded plastic mini PC speaker with a transmission line design.) So I think, there needs to be a follow up at some point to explain perceived bass vs actual bass and design trickery used to fool us into thinking we're hearing ample bass from a small speaker in a small room. Most of the fundamentals have been given in this analysis which can thus serve as the stepping stone.
Thank you Stelios. I found it really interesting to hear your perspectives things and you raise some excellent points. As you point out, they may be worth addressing in another video at another time. Thank you for watching, commenting and supporting the channel 😉👍
@@abritishaudiophile7314 Tarun, you're welcome. I find your perspective on audio reviewing refreshingly hype-free and educative. What's more, you approach the education element in a structured and organized way, rather than assuming the viewer already knows the basics (which often they don't) or offering hap-hazard glimpses into the theory behind audio (which only serves to create an air of mystery but imparts no actual knowledge), and thus the viewer has gained something they can take away and apply many times in the future as they need to.
Hi Stelios, I suppose the teacher in my ultimately wants to try and impart some knowledge as you have so eloquently described. Thank you for your support 😉👍
Well done! This is a good resource for people making choices for speakers. It's very well explained and presented with some very nice speaker examples. Just a note, I think you meant 'excursion' when describing 'xmax' (the max travel distance of the driver before fouling the basket or to the point of unacceptable response). The driver 'displacement', usually describes the volume it takes up behind the baffle. Used to adjust the box volume for a particular target. Anyway, thanks for posting this.
Very in depth and well explained video. I currently own the first Buchardt SE S400 serial number 1 and have been enjoying them for a little over a year. But I'm looking for an upgrade because of thier bass limitations at higher spl levels. Kudos on your RUclips videos.
Ron, An interview or talk with you both would make a great vid. Maybe, the discussion can be around the topic of 'HiFi perspectives' from both sides of the pond.
Wow, I really got a lot out of your video. Very clear and well presented- thanku. Would u be able to talk about Voigt pipes- its popularity is increasing especially with the rise in poularity in single driver speakers.
You mean all that chuffing sound I hear from ported speakers isn't due to bad singers with a bad vibrato?! LOL...seriously, I really like how articulate and clear your explanations are. Very educational...great video, Tarun.
I built my own transmission lines from a kit from IPL acoustics. I still have them but they are at home in the UK (I am currently on the continent)...They sounded fantastic. I really miss those speakers
An excellent explanation of a complex subject which goes a long when it comes to making informed choices with regards to speaker choice. Maybe you could explain the interaction between amplifiers and different speaker designs. Regards
Thank you Lennox. I appreciate you watching and your support. Take a look at my video on amplifier power. I go into the relationship to some extent. ruclips.net/video/N2LPcU35r50/видео.html
Hi my friend from Britain, thanks a lot for your sympathetic and informative lesson. I agree, that passive speakers did not improve lets say for the last 20 years, but in terms of bass performance , todayˋs active technology blows away all passive concepts, especially in smaller box dimensions, which fit to modern room styles. best regards from germany!
Certainly good points! Coming from pro audio world, I've been interested why active/powered solutions have been slow to be adopted in the audiophile community. I'm guessing it's the perceived lack of mix and match possibilities. However the performance capabilities are undeniable. Passive crossovers are inherently lossy, they exhibit hysteresis, they introduce frequency dependent time errors, they negatively impact an amplifier's ability to damp cone movement. My primary rig utilizes 2kw active/powered three ways, DSP contoured/fully time and phase aligned... they're stunning. As I'm into multichannel SACD, I've got three identical across the front. Granted, I've experienced passive systems vastly superior to mine. That said, and as you pointed out, active/powered approach... like Andrew Jones' Navis, offer killer performance in a single box solution. Best regards back at you! (I lived in Germany in 1980)
@@FOH3663 My guess is the lack of mix and match possibilities and it is a lot easier to think of just replacing the speakers in a current system rather than also giving up ones beloved amp. And for some there is probably the ability to think that their overall system is better than others that have some of the same components. Whereas with powered speakers everyone that owns the same ones has the same quality 'system'. It is harder to puff up ones chest and declare "in my system I have....".
Thanks Tarun, another great explanation of design principles. I lived with a pair of Pro-9 TL transmission lines for 25 years and they still sound great when I visit their current owner. Although not terribly efficient they are often an easy load for an amplifier and consequently well-suited to any amp including valves. I have lived with all of these enclosure designs at some point and I dislike ABR designs and most ported designs aren't much better. The only ported type I like are folded triangular quarter-wave enclosures. These are a crude horn with the mouth blocked up but a port at the mouth. I built a pair for my son with a foam-damped slot port and could easily live with those. Off-hand I can't think of a commercial design using this enclosure type though. They tend to be tall and slim so quite good domestically. If you double the price point then panels sound great. I would happily listen to big ribbons or electrostatics - if my listening room were three times bigger. Also at twice the price point are my all-time favourites - horns. Domestic-sized horns are a bit lightweight in the bass but are peerless for speed and detail. Just add a sub for the last couple of octaves and make the sub an active sealed-box design. If you have ever been to a big outdoor rock concert or festival you may recognise the sonic signature of a bass horn. Horns are a bit "Marmite" - love them or hate them though. I personally have no desire to try any other design.
Great video and very well explained speaker type and their differences, as you rightly say it is down to personal choice and this is why auditioning your system is so important and more so in how they react to the room they are being used in. Personally I went with the ATC scm19 because their attack, decay rates and transients suit my room and system perfectly, and the qualities I wanted. Many thanks.
Thank you for watching and sharing your experiences Steve. A review of the ATC SCM 19s is coming so I don’t want to give too much away. All I will say is that I am not surprised that you went for them. Out of interest, what are you powering them with? And how do you find them to drive? They are currently connected to my Exposure monoblocks.
@@abritishaudiophile7314 My pleasure, when I brought the ATC SCM 19 I knew that they were not the easiest speakers to drive, originally I used my Roksan K2 amp very good but not open or detailed enough. Then I auditioned them with the Naim XS 3 and Supernait 3 and although the sound was very good I found the XS 3 combination was lacking the rhythmic drive I was hoping for, don't get me wrong the sound was fabulous BUT... I went back to my dealer and got a Naim Supernait 3 to replace the XS3 and WOW huge step up. Open, detailed, full of Naims PRaT and the sound-stage was beautifully layered and presented also with great channel separation. The sound is now richer much more dynamic and fluid, they certainly require high current delivery to sound their best. I have now added the HiCap DR which has moved things up another notch. So my system is Rega RP6 with Ortofon Quintet Blue, Lehmann Audio Statement Black cube MC phono stage, Naim CD5si which punches well above it's price point, Naim Supernait 3, Naim HiCap DR, ATC SCM 19, Dynaudio sand filled stands. The speakers are tilted back by 3Deg. Hope this is what you wanted.
Great video! Thank you sharing your knowledge. Can you make a video demo of the speakers mentioned here comparing the differences or similarities of the bass. Again, thank you in advance!
That you Chris. I appreciate you watching and commenting. I don’t do sound demos anymore for a bunch of reasons, copyright issues, I don’t have the recording equipment to do them justice. I also believe they can be misleading as people are judging my system and room through their system and room. I used to do a sound clip at the beginning of my videos for entertainment purposes and to showcase music that I like but can’t do it anymore due to copyright infringement. I hope you understand and sorry to disappoint 😉👍
@@abritishaudiophile7314 I can't get my head around that justification. I am not saying that to you to fault you but in general. I watched a lot of video walkthrough of somebody else's setup bragging about their equipment but don't have the balls to show it (demo). Again it ain't you just that justification or notion. Anyway, I like bass and I make video of my setup. Here it is, I am most certain that you would think atleast one word about the setup without minding all the recording process and what not. ruclips.net/video/p_2pnWIULBk/видео.html Keep rocking, I like your channel ver much. Please share more of your knowledge.
@@abritishaudiophile7314 My pleasure, truly enjoy the content. Coincidentally, I own pairs of PMC twenty.21, ProAc Tablette 10's, a DIY "Baby Labs Stinger Woden" which is a TL and Klipsch Quartet which uses a passive radiator.... so this video gave me better insight into their bass performance.
Excellent video, as usual. I've discovered your channel a couple of weeks ago and am enjoying it a lot so far. One little thing though: at 4:00 you state that Xmax ist the maximum displacement of the driver - afaik Xmax normally refers to the maximum excursion and air displacement would therefore be 2x Xmax x diaphragm area (do correct me if I'm wrong here). I've incidentially never actually seen a statistic measuring the displacement per cycle, though I feel this should be pretty important in terms of bass performance. Anyway, thanks for the great content, keep it up!
Fantastic primer Tarun! Thanks so much for all your fair, informative and inspiring videos. A dream future video for me would be a grand tour of the BBC style of speakers, their children and grandchildren. You would be the perfect person to explain their enclosure design, to make sense of all the variants out there and to provide some insight on how some companies are trying to improve on the original design. Audio Note is also using this idea of making the cabinet walls contribute to the sound (at the right frequency) instead of trying to brace them to death. (By the way, I did email Spatial Europe but they don’t have UK distributors for now and Spatial Audio USA doesn’t export to Europe).
Thank you Claude. Shame about the Spatials. Thank you for trying. I agree, the LS3/5a and off spring would be an interesting project. Would have to get an original in to start with. I could speak to Jerry at Falcon.
@@abritishaudiophile7314Thank you for the feedback. Concerning the bass frequency response of speakers, have you ever used any kind of device to slightly boost/extend the bass of one of your sets of speakers and been satisfied with the result? Any contraption, hardware, combination of harware/software, DSP, etc. ? This would be for situations where one doesn’t want to use subs (due to the high cost of fast subs or an apartment with poor sound insulation, etc). Regards.
Hi Claude, I haven’t really played with DSP at home. Listened to a few demos with mixed results but the implementations are getting better and better. Maybe time to give it a try.
I have owned a lot of speakers, close and bass reflex but my Bowers and Wilkins DM2a speakers from some 30 years ago are transmission line speakers and I always kept them because I m addicted to their bass ...I hope manufacturers will make more transmissies line speakers!
@@abritishaudiophile7314 Momentum SX3i is a peach, incredible powerful taut bass from a bookshelf and fun and emotive to listen to. More so that a Dynuadio Contour S1.4 that I had for example.
What a great video! Very clear technical language and explanation. 👌 I have question, with regards to overall sound quality (not just bass) which of the four speakers is your favourite?
Hi Joao, that is tough one. My ideal speaker would have the speed and clarity of the ATCs, the tonality of the Proacs, the bass of the Celestions. The Buchardt’s are a good all rounder. That is a diplomatic answer. If I am using with a subwoofer, I still haven’t decided between the ATCs and the Proacs. Thank you for watching 😉👍
Very nice explanation. I know very little about the mechanical aspects of audio equipment, but it was very clear and easy to understand. Just one question: how about sealed box servo woofers? Does the servo system mitigate most of the issues that are typical for sealed enclosures?
Thank you Qorax, servo woofers use an accelerometer in a feedback loop to control the motion of the woofer more precisely. Like most things on this hobby, i am sure it has it’s downsides as well as the obvious benefits. Maybe worth researching and doing a video on if I get one in for review.
Thank you Steve. People like to knock Bose but they have had some really innovative designs over the years. They get it right for the market they are going for. Some audiophiles need to appreciate products for what they are intended to deliver even if they do not appeal to them.
Hi Tarun and another excellent video explanation of HiFi, this time speaker enclosure design. As it happens I looked at the Celestion when I was putting my system together 30-32 years ago but sadly at around 1K GBP they were just out of my price range at that time so I opted fo the KEF Q90's which I still have and love. Although I never understood or even knew the terminology at the time I now see why the Celestion were more expensive due to the TL topology. I'm guessing my KEFs are ported as the Bass unit is inside the box pointing at the ground and the sound comes out of a metal grill on the front of the box. Anyway thanks again for the super explanation.
Hi Keith, thank you for watching and sharing your experiences. You are right, the Kef Q90s are a ported design. Very well regarded speaker at the time, I sold a bunch of them when I was working at a hifi store in my youth. Kef must have got something right as you are still enjoying yours.
Hi, Great territorial on explaining the differences between speakers, A couple of things that you might be interested in one I’ve just recently seen a pair of focal cobalt 806S, Is similar to what you’re displaying I think was on the right hand side I do not know a lot about them they look and raise me good condition they are for sale for €275 I weren’t sure where they were buying, ? . And transmission line speaker cabinet I built a pair back in the early 80s a copy of somebody that I designed something back in the 70s that was in a hi-fi magazine a colleague of mine who was into electronics made a crossover and we put in a pair of Peeles
@@abritishaudiophile7314 Hi , I have been listening to the Focal 806 S , Obviously they like a bit of presents compare with my transmission line cabinets but I can hear a noise coming from one of them, I did change L to R , and there is definitely a noise coming from one of them whether it is a dry joint or whether something else I’m not sure whether I can get inside them to do anything as they appear to be a sealed box I’ll have a look tomorrow. what do you think it could be any ideas, PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE
@@abritishaudiophile7314 Hi, , The hissing noise is coming from the Tweeter in one cabinet and the other cabinet doesn’t sound like the Tweeter is working at all, Not sure if I should take them back, or see if I can get inside to get to the crossover and do a test on the tweeter, I suppose in some respects it might be reasonably cheap to rebuild them with a pair of new tweezers and if it’s a component gone in the crossover they should be relatively cheap as well. PHIL FROM THE DARK SIDE OF THE MOULIN.
@@abritishaudiophile7314 Hi, Tarun, yes it is me again, I have noticed that I have a noise coming from my device somewhere I think it might be from my streaming Bluetooth device it’s probably because it’s so cheap, When I play CD or type or anything else it seems to be fine no noise at all. PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE
Thank you Dimitrios. It was a good way of getting more bass out of a small enclosure. I suspect modern drivers with better excursion capabilities has meant that they are not so common anymore 😊👍
@@abritishaudiophile7314 There is a small British company, near Durham (north England) named NEAT that makes speakers using this technique. The have a high end series named Ultimatum and recently a mid priced one (I am not ready to tell now). I own the XLS series that are very punchy, somehow sensitive (89db) and to my ears lovely.
Came across your videos recently. Do you remember the tdl rtl3 transmission line speakers back in the day. I went for a set of tannoy 611s in the end which are not too bad. Use the dual concentric speakers. Used mainly as front speakers for an av system. Well done on explaining how speakers work!
@@abritishaudiophile7314 How I wish you sir find the Tannoy D700s and test them for your opinion about those speakers I still remember that sound every musician was in the room in front of me I was shocked thank you for your opinion in general about Hi Fi equipment
@@abritishaudiophile7314 Hi i've owned set of Tannoy 611s for over 30 years, very good speakers, but recently bought a set of Tannoy revolution xt 8f, hoping the hype was true that my Pioneer A-400 amp should be matched with hi end speakers, also for extra bass. Yes the bass is better with xt 8fs, and a more direct sound as the speakers are taller, the drivers are higher up so i can here more treble. Enjoyed your vidoe thanks.
@@alanjipy55 hi just as a matter of interest what do the 611's sound like with the a400? I have a marantz cd63. I was thinking about buying an a400 at some point in the future. Regards Mark
@@markberry8182 Hi I think they are a perfect match, very nice balanced sound, with lots of mid-range, mid-band, lots of volume. The bass really kicks in when you crank the A-400 up a bit. If i was you would get one as soon as possible because it is an old Amp.
Just discovered your channel a couple of hours back and have mindlessly begun binge-watching a variety of your informative videos. Really great content! Have you tried any of the Airpulse speakers? I recently acquired the A300 and am amazed with their quality. I would like to hear your thoughts from this manufacturer.
Hi Sleeper1023, I hope I haven’t bored you too much. I haven’t heard the Airpulse A300 but just looked them up. A few things I can say. If you want the most performance for your money, actives are the way to go. Also, the designer is Phil Jones who founded Acoustic Energy and they make some great speakers. I have heard their active AE1s at a show and was very impressed. Now you have jogged my memory, I need to call them to see if I can get a pair in for review. Thank you for watching and commenting 😉👍
@@abritishaudiophile7314 Thanks for the feedback! Your videos have been really helpful, actually. I'm just getting back into the hobby and haven't bought a set in 8 years. Heard the A300 in store and immediately pulled the trigger and was wondering how they stack up against the current competition. Looking forward to your review! Cheers
@@abritishaudiophile7314 Still looking forward to it! If I were in the UK I would've sent mine for review. I'm also planning to get Buchardts for my next pair, but I gotta put the A300 first through its paces and enjoy it.
Hi. I am in the process of considering the ATC sm7. I’m not sure if my Hegel H90would be sufficient in driving the ATC. What are you using to power your ATC speakers? Thank you. I tremendously enjoy your videos and your honest, no frills viewpoint.
Thank you Rene. Ideally, you want something with a little more power but you could get away with the H90 if you aren’t too far away from the speakers and don’t listen too loud. I used it with my Hegel H160 which drove them perfectly 😊👍
Really brilliant coverage ( which i have only just found), thank you very much. Agree with the comment that you should write a book with this background. Further things that interest: the climate - in tropical locations i wonder if humidity is significant? I had ported speakers in Hong Kong 20 years ago, and the (funny but true) problem was that insects and roaches could infest the interiors of the boxes. You, probably intentionally, do not raise the issue of speaker preference in relation to individual type of music preferred, symphonic music, Bach toccatas, (my own preferences). I parted with my vinyl discs when the aformentioned humidity filled the tracks with mould !!
Thanks for this informative video! I have a question regarding ported speakers: What do you think of sealing a ported speaker with foam plugs? Some manufacturers ship foam plugs with their speakers and recommend to play with them depending on the positioning. But if I understand the theory you explained correctly, sealing a ported speaker might not be ideal as you mention woofers are more suited for certain designs depending on their Q factor. Is this correct?
Personally, I've owned a pair of speakers which excited modes in the room I used them in. Putting the foam plugs into the ports certainly helped reducing this boomy bass response and I prefered it over the ported (open) operation back then. The reason I'm asking this now, is that I have small bookshelf speakers now to which I'd like to add one or two subwoofers and I was thinking about sealing the ports so the subwoofer(s) take care of the lower frequencies. But the manufacturer of these speakers doesn't ship foam plugs with the speakers so I'm not sure whether they're actually suited for this kind of operation.
Hi Timo, that is an excellent question.
Plugging ports will change the loading of the bass driver to mimic a sealed system but it doesn’t miraculously turn a ported design into a sealed design. Remember, the bass driver was selected by the designer to work in a ported enclosure. It will have T/S parameters, yes, including the damping (Q), but other parameters as well to work optimally in a ported enclosure. Subsequently, plugging ports will shift the tonal balance of the speaker. You will get less bass output at the resonant frequency of the port and overall the bass will roll off earlier but less steeply as per a sealed box design.
Plugging ports can be beneficial if you have boomy bass in your room but it is like putting a band aid on a deep wound. It is masking a more fundamental problem. There are two reasons why you get boomy bass. The speaker is too large and has too much bass output for the room, exciting room modes. The second reason is that the speaker is too close to wall boundaries so you are getting too much low frequency bass reinforcement. You are much better dealing with the fundamental issue and either moving your speaker away from walls or changing the speaker.
Finally, now that you have changed your floor standing speakers to monitors, I wouldn’t plug the ports for the reasons I mentioned above. Adding subwoofers is a good idea, one good, two better! It is not about more bass, although they will extend the bass response of your system. The main benefit is that you are going from two bass sources in your room to four bass sources. This will help even out room modes in your room, resulting in a more even bass response.
Thank you for watching 😉👍
@@abritishaudiophile7314 Thanks for taking the time to provide such a detailed answer. That clears everything up for me. I'll leave the ports open ;)
Timo S. i would not get too hung up on theory. Try plugged and unplugged and go for whatever sounds best to your ears. This is all that matters in the end.
i have filled the port with straws the same length of the port this helps to clean up the bass is the port on the front or back and how many bass drives does it have and size and how big is your room this can tell us what is the problem
My speakers came with three foam bungs per speaker (as there are three ports per speaker), giving a bit of tunability, but to be honest I've never experimented with them. Maybe I should! Great channel btw :)
That was probably the best and most easily understandable explanation of the ins and outs of speakers, enclosures, and their workings. You should honestly write a book in regards to all aspects of HiFi. You’re also very well spoken, which is extremely appreciated.
Thanks very much, Tarun!
Thank you Nick. It is very kind and generous of you to say. I appreciate your support 😊👍
I 2nd that hole heartedly,excellent explanation once again.
Where have you been all our hifi/audiophile lifes?!
PS.Have you thought of buying/reviewing a turntable any further,it would be intriguing to hear/see your views on the format....no pressure(lol)?
#hifi4ever
I agree that Tarun is developing a very useful niche of his own, incorporating detailed engineering theory into his reviews. I like it.
ev
Lol “where have you been...” Haha!
I’m a vinyl guy too, and would love to see the same, but not sure Tarun is into vinyl, but it’s worth at least asking.
Tarun, do you own/use a turntable/listen to vinyl? See, now we both asked. lol
Barton Facey
Yeah man, no doubt. Tarun’s great, and so is his approach to explaining things in a such a succinct way.
You always strike the perfect balance of presenting technical enough information to provide a real understanding of the subject, and keeping it understandable for the masses. Thank you for the education!
Thank you Steven. That is always very much at the forefront of my mind when I do these type of videos. Hopefully, I get the balance right but I can’t be sure until I put the video out there. I appreciate you watching and your support 😉👍
In theory yes.
In practical?
NAH.
You provide the most easily understood explanations of complex subject matter I have seen. Always interesting and I learn a lot, thank you.
Thank you Sean. I appreciate you watching and your kind words of support 😉👍
I agree - it’s a rare talent indeed!
Hi イエンスヨハンセン , thank you. Very kind 😊
Your videos are amazing, no other channel helped me this much to understand hi-fi. Thank you Sir!
Thank you Peter. That is very kind of you to say 😉👍
This is incredibly informative and really something I've been wanting to understand and noone seem to lay everything out in easily digestible and well articulated explanation like this. Big thank you! Truly quality content you're producing here.
Thank you Yogi. It is very kind of you 😉👍
Excellent explanations - clear, concise, interesting details without getting boring. I hope you can do more of this type of video. I also really like how you stay away from getting bogged down with specs and too much in the way of minute details. Great work !!!
Thank you kindly Johnny 😊👍
God bless you Tarun! This explain why building a speaker from scratch is much harder than it seems. No principles or design is perfect, as you demonstrate it quite thoroughly, but a choice must be made according to our priorities (size, bass extension or transient response). I think the best way to go about it is to make several prototypes and to listen to see which one sounds the best. The audiophile community needs this kind of technical information to help in the selection of the best speakers for their need. Definitively one of the best video on Hi-Fi to date. Congratulations!
Thank you my friend. Very kind and great to have your perspective 😊👍👍
Really enjoy your approach to speaker discussion/reviews. You strike a good balance between technical detail and keeping it easy to understand.
Thank you Amir, that is what I am striving for 😉👍
Thanks for an excellent overview of bass loading techniques. I went to a transmission line speaker 30 years ago, and have zero urge to go back to conventional bass loading. Deep, clear, dynamic bass is an excellent foundation for the whole system. The lack of internal speaker resonance also benefits vocal clarity and imaging. It's such a wonderful design. More manufacturers should pursue the TL.
Thank you Scott. I hanker for more TL designs too 😊👍
Your explanation of the TS parameters has clarified these for me. Excellent!
Thank you Solomon 😉👍
This is the best audio channel on RUclips, hands down!
Thank you Bushwacked487. I appreciate your support 😉👍
I have only come across a very select few reviewers that actually give all the time and nuance to these topics that they deserve. It's either really all subjectivity/hype "don't forget to check my affiliate links for all 500 things mentioned in this video" or schilly/entertainment type deals. Really glad I found this channel. Great job describing and long form delivery that isn't boring or drawn out but enough to really break it all down. This is extremely helpful, rather than having to piece together everything on ones own through 5 different reviews and 8 forum threads. 👍
Thank you Matt. It is getting feedback like yours that makes do this so worth 😊👍👍
Very clear and informative Tarun. I always wanted to know the pros and cons and reasons for different enclosures speakers. Ported, sealed and passive radiators. Now I got it. Thanks for explaining it in detail and in an easy understandable way.
Thank you Roberto 😉👍
Well done, easy to comprehend and differentiate the engineering challenges (and resulting costs) behind acoustic speaker designs.
Thank you 😊👍
Thank you.
A wonderful explanation of the types of speaker enclosures. As a lecturer in electronics I am particularly impressed with your structure & technical grasp .I have to grade two dozen project vivas each year so I should know I guess..keep up the good work
Thank you Mike. I appreciate your feedback and support 😉👍
Tarun you are like the my audiophile Yoda! So much knowledge, sage like and calming. Top work once again!
Thank you Small Room Audio. You kind words of support are very much appreciated 😉👍
As others have said, these videos are very well made and very useful. You concisely explain the differences very well, ackowledging that all hifi is about compromises. Every design has advantages and disadvantages, although that's not to say they are all equal. Cost naturally is a big factor at work. Keep up the good work Tarun!
Thank you Coneman3. I will try my best 😉👍
Thanks for the excellently structured and lucid overview of these loudspeaker types - I've certainly learnt something today. More like this, please!
Thank you Chris 😉👍
Thanks for the clear explanation. About 40 years ago I constructed a pair of transmission line speakers. The design was in Wireless World by a Dr Bailey. I used KEF B139 and T15 drivers and a filling of long fibre wool. They sounded terrific. At the time They were a bit large for our small room so I sold them and bought a pair of B&Ws DM4s which sounded lifeless in comparison. I now have floor standing full range electrostatics made here in Australia by E R Audio. In a totally different league to any box speaker I have ever heard.
Thank you for watching Geoff and sharing your experiences 😉
Remember the wonderful B139 kits, Superb bass when not sitting on the floor. Was looking at KEFs, Gale, Bose and B&W back in 1981, yes they all sounded different but all were very good. Ended with DM6, transmission line KEFs would have sounded good. But sitting the bass driver on the floor with a fluffy carpet made them sound very ordinary. I can understand your feelings over the DM4. Ah the good old days. Excellent video, make sense, and you can hear the difference.
Greg O'Neil Personally I was glad to see the back of vynil. Remarkably good for a bit of rock scraping on a plastic disc. Walk into the local electronics store and there is a row of turntables! I think to myself “your welcome to it!”.
I had a colleague who built the exact same design, the B139 meant it was always going to end up big, but these took some moving. He did them in Ply-Wood stained brown. They were a excellent design for the day.
Yes I have to agree with nick pantazi very clear and informative.having this much information would make it so much easier to choose the type of speakers or piece of hifi that would suit the individual.again another great vlog .I could listen to you all day. Massive thumbs up 👍
Thank you James. I appreciate you watching, taking the time to comment on the video and your kind words of support. I was a bit concerned about overloading with information on this video. I hope I didn’t go overboard 😉👍
I sincerely enjoyed your explanation of these different speaker formats. I have a 30 year old pair of acoustically suspended NHT 2.3a speakers that I continue to appreciate. A transmission line speakers has always interested me I have a Bose wave radio the works on the transmission line theory. I would love to demo some PMC speakers. Love the channel sir, please continue to share your knowledge!
Thank you. I will try and get some PMCs in for review 😉
Larry Hunka thank you for sharing that information.
An absolutely brilliant presentation. Thanks much for this.
Thank you for watching and your support Gary 🤔👍
Great video and well explained.
I own IMF-RSPM [rebuilt, upgraded and restored] which Tarun as you might well know are a British speaker from the 70's and extremely well thought out design and sound fantastic. 2 weeks ago I took delivery of my new speakers from a local speaker company who built my custom bookshelf speaker [4ohm] which is a transmission design that is ported using 7.5" Satori driver, 5.5" mid, 25mm tweeter and the sound is incredibility clear and soundstage is dead centre and it hits 30Hz - 40kHz. Mind you it is a very large cabinet and looks like a large ATC speaker. I have this matched to a vintage Luxman R-1120 which has a dedicated 4ohm [240wpc] speaker output terminals. I think I have found my forever stereo system after 40 years. Keep up the great work with the videos, you are my favourite audio channel on you-tube. I just brought some Ferrite Cores that you mentioned in your previous video that I will put on my speaker leads so thanks for the tip. Cheers.
Thank you Mr Australia sound like a great system. Their is something special about transmission line speakers done correctly 👍. Thank you for watching and sharing your experiences 😉
Thankyou for the guidance, you’re turning out to be a guru of audio, plz make a similar video focusing on high frequencies & different types of tweeters.
Hi Sanjay, thank you for watching and your suggestion. I will look into it. 😉👍
This channel is easily the best on RUclips for speakers, audio, etc. So informative, interesting and clear in communication. Thank you!
Thank you. That is very kind and greatly appreciated 👍🙂👍
@@abritishaudiophile7314 Hi , You would not believe what I have found the plastic around the back of the Tweeter is split and the magnet has come off the Planted it’s off on the back of the bass driver unit, I wish I could send you a picture but I don’t know how to I do not have your email address to send it. I have managed to re-secure the magnet but it’s only held in by three clips where it should be four ,
So they are both up and running but what I’m going to do is see whether I can get a new pair of tweeter’s drivers for them,
And the noise is coming from the streaming Bluetooth device obviously creating interference so hopefully when I purchase my new amp it well hopefully come with it built-in or I will buy a new device for streaming, At least at the moment they’re working and I’ll find out what the cost of a new pair of drive units , Thank you for help, PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE.
@@philvale5724 I would get a new pair of matched tweeters 😊
@@abritishaudiophile7314 yes 👍, They are a Funny shape I got 4 flat sides on it, I think I’ll have to try and contact vocal them self, I have been using a company in the Netherlands who seem to be very helpful I’ve got my seas drivers from there, I will let you know how I get on, Thank you once again all the best for now, PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE.
About 8 years ago managed to acquire a pair of TDL Studio 3 proper transmission line speakers of the John Wright era and not Richer sounds. These I believe are the mk1 version so a fair age and in desperate need of an overhaul. Cabinets need touched up and crossovers and internal wiring upgraded. Despite all this never had speakers effortlessly go so low and move air in the room. Just found your channel tonight, def thumbs up for your style and presentation.
Thank you for watching and sharing your experiences Kevin 😉👍
Thank you Tarun for a most informative and cleverly presented video on speaker designs. Room interaction could as always be the determining factor of preference as to design. In my case after a life long interest in hifi and music I have ended up with PMCs as my end-game speakers for the very reasons you rightfully pointed out. Keep them coming 👍🏼 and all the best Peter
Thank you Peter for your kind words of support and for sharing your experiences 😉👍
Thanks for another informative video tarun. Really interesting, I was glad to see your conclusion matched what I already thought was the answer transmission line.
I only know this from a demo of PMC twenty I heard several years ago, me & my brother in law were blown away by the clean extended bass I didn’t buy them but definitely would consider PMC in the future.
Thank you Madds66. I will try and get some PMCs in for review. Thank you sharing 😉👍
PMC is good, I had them. The DB1+
Tarun, thank you. I now have some insight into how R &D and other aspects figure into the pricing of speakers.
Thank you James 😊👍
Thanks for a very informative video, I still own a pair of TDL RTL 2's which are transmission line, which still sound good today, this is probably why I gravitate to PMC.
Hi Chunksville, Rembrandts those TDLs. Thank you for watching and sharing 😉
Us of us in the know are really in the know. Tarun you have Celestion 300 transmission lines and love Exposure amps one side of the world (UK). I run PMC's and power them with Exposure amps in Australia. Had this setup before I saw your first video. PMC and Exposure are magic together!
Thx for sharing 👍
Thanks, I'm enjoying your videos. And this one made me feel especially good since I still love my 40 yr old tramission line Toby Speakers, out of Ft Worth, TX. They seem to get better with age.
Like a fine wine. Thank you for watching gmanchefboy 😉
Enjoyed this video a lot, it is refreshing and nice to see a British Audiophile on you tube. Not that I’ve got anything against Americans, just feel the British have got a lot to offer as well.
Thank you Martin. Much appreciated 👍
Very clear, concise explanation of the different speaker designs. Through the years I have tried my hand at three of these designs. Started with accoustic suspension then moved to base port and finally transmission line. I have to agree that the transmission line is by far the more difficult to get right but worth it in the end.
Being a Mechanical Engineer by trade I was always fascinated by the mechanical aspect of speaker design. I think you mentioned that mechanical damping had to do with the stiffness of the surround and the voice coil suspension but my impression is that this has more to do with compliance while damping usually has to do with the ability to dissipate/absorb energy in a mass/spring/damper system. Of course cone mass, stiffness and damping all work together. I think a stiffer suspended cone would tend to have less effective damping. Also heavier cones would require more damping to stop oscillating quick;y. Just a minor point.
It has been my impression that mechanical damping is less important that electrical damping. A low Qe (electrical damping coefficient) is usually associated with a strong voice coil magnetic field interaction which improves the transient response of a speaker (voice coil starts and stops moving abruptly with the signal). Mechanical damping, on the other hand helps stop the woofer movement after the signal stops but makes it a little slower to pick up at the start of the signal. I believe low mass is also beneficial in improving transient response as the lower inertia makes it easier for the speaker cone to start and stop vibrating with the signal.
I enjoyed your video and I agree with your assessment of the different designs. I would like to hear more of your talks so I am subscribing to your channel.
Hi Jim, thank you for watching and supporting the channel. It is very much appreciated. I am also grateful that you shared your knowledge and experiences. Very informative 😉👍
Totally enjoyed your excellent comparisons. Your speakers won! Hooray!
Thank you Danny. I was holding the wouldn’t but I have to tell it like it is 👍😉
@@abritishaudiophile7314 Honesty, is always the best policy!
It is actually, bleeding inconvenient given that I am trying to get manufacturers to send me equipment to review at the moment but what can I do?...😪 Lol 😊😊
@@abritishaudiophile7314 As you pointed out , there are trade offs. Yes, all fine speakers! This review was specifically about bass performance, as per, speaker enclosure design. I, for one, appreciated your candor and knowledgeable comparisons. Bass, is only one reason to consider. Subwoofers were made, to fill the bass void ! Your review...Spot on!
Thanks Danny
Another excellent video. Whilst I appreciate that you can’t possibly cover every speaker design, it is, I think worth mentioning that many ported, or bass reflex designs are today supplied with port bungs, which can be used to seal, or partially seal the port, or ports. Whilst this does not make the cabinet perform like a sealed box, it can go a long way to tune the bass to your room and help tighten the timing. Tuning the bass to your room can be very effective if you don’t have the capacity to pull your speakers away from the wall behind them!
Thank you Howard 😊👍
I run a pair of PMC OB1i' s on the end of Naim NAP 135 monoblocks. The low end is absolutely staggering. Great video, very comprehensive.
Thank you Kevin, I appreciate you watching and sharing 😉👍
phenomenal explanation of speaker parameters imo
@@bingdong8571 thank you kindly 😊👍
Great review really educational. Judging by the comments we want more educational presentations like this.
Thank you kindly 😊👍
Excellent video. Hope you will make one where you will go more into debth about amplifiers as well.
Thank you Joan. I suspect I may need more than one video.
Excellent video Tarun. Very interesting and very well explained. Thanks.
Thanks Mike 😉👍
Such an interesting and excellently communicated explanation of speaker design. I have always preferred floor standing speakers but didn't know about transmission being different from from front ported. My Tannoy XT8F i think are just clever front ported.
Hi B Shah, good to hear from you. Your tannoys are a ported design but the port is at the bottom of the enclosure. They a very good dual concentric design. Thank you for sharing and supporting this channel 😉👍
Thanks, for another great video. Very clear explanation, it must take a lot of time breaking down topics in to an easy to understand dialogue
Thank you Shahid. You are right, it does. It is deciding what to include, what to leave out and how you can get the message across without it becoming a science/engineering tutorial. I appreciate your support 😉👍
Quite brilliant! Very enjoyable and easy to understand!
Thank you Noel. Very kind 😊👍
I commend you for including a transmission line design. I've built three different versions over the years, two of which used speakers that came with no info and were used based on the suspension type of the cones.. all three reproduced double bass exceptionally well.
Two designs were similar to your Celestions one being vented to the rear and one design being vented to the front.. the third design was much shorter and much deeper front to back.
That is fascinating Glynn. Thank you for watching and sharing your experiences 😊👍
Wow! What an excellent summary and explanation. I fully agree with you about the benefits of the Transmission line having owned a pair of IMFs some forty years ago. I also agree with your comments about bass being only part of the equation- so the IMFs got dumped!
Thank you Gareth 😊👍
Smashed it yet again Tarin. Must admit the Proac 1's look the classiest of all there. There's a lot more to speaker design than people realise and you have explained it very well. Passive radiator if done correctly seems to be the best design, but I do like a front or bottom ported (modern Proac design) design for placement in a small room Thanks for sharing.
Hi Steve, good to hear from you buddy. I think you can’t beat a good transmission line if done right. That is a big if! I agree with you, the Proacs look the best. Sound mighty fine too. 😉👍
@@abritishaudiophile7314 talking about the Proac's I've listened to the D2's a few times and every time they just make me smile with their superb sound. Lovely bass/ mid range for a stand mount speaker and sweet treble. Have you ever heard them and what's your thoughts?
This is a fantastic video with lots of of technical information. I feel a follow up video could be made on the mid-range and treble merits of these various speakers. therefore giving an overall assessment of the speakers, and It would be interesting to see which one comes out on top (Proac Response 1SC? lol). Although I appreciate how much our various musical tastes, room topography, and partnering equipment can have on the overall assessment.
Thank you Clem. Cool suggestion 😎👍
Excellent discussion of the different design philosophies
Thank you 👍
Thanks for your fantastic info and professional approach. Much appreciated!
Thank you for watching and your support 😊👍
Wow! Very educational and succinct. I have to say I wasn't expecting the depth this short intro into speaker design goes into. A very good exposition, albeit detailed, of the fundamentals that one has to grasp through before getting to the punchline in the end. For the wannabe audiophile, who would like to make an informed choice before a significant purchase, it is as short and informative as the subject allows.
On the rather more trivial side of things (the other end of the spectrum opposite your run-of-the-mill audiophile) I find it amazing how many people out there expect to have good bass without the associated speaker volume. In fact, to some people, good bass is nothing at all close to what is described here. Hardly surprising nowadays when most people's only question when buying a speaker is "has it got Bluetooth"? While these people are not audiophiles, having been raised listening to midis, micros and mp3 players through earbuds, the misconception they hold on to so dearly is often found across the spectrum of listeners - and, case in point, the uninformed audiophiles. So, what is good bass needs to be defined for the individual listener ahead of the design choice. Simply put, some people like their bass flabby or they like pronounced midbass (because that's what they've grown up listening to) and don't care about extension - in fact they don't like it.
Grasping the fundamentals, and in particular that clean extended undistorted bass is equivalent to large speaker volume, constantly goes amiss. They just don't want to know. So they train themselves to like bass that's not true. There is of course a portion of honest audiophiles that don't have extended bass on their requirements' list.
This review concentrates in medium to small sized speakers with the transmission line being the exception on account that there aren't any small sized transmission lines in the market. Understandable as it didn't make any market sense to make the small ones in the past as they would cost more to make than their bigger, better siblings. (Having said that, I think I've seen a molded plastic mini PC speaker with a transmission line design.) So I think, there needs to be a follow up at some point to explain perceived bass vs actual bass and design trickery used to fool us into thinking we're hearing ample bass from a small speaker in a small room. Most of the fundamentals have been given in this analysis which can thus serve as the stepping stone.
Thank you Stelios. I found it really interesting to hear your perspectives things and you raise some excellent points. As you point out, they may be worth addressing in another video at another time. Thank you for watching, commenting and supporting the channel 😉👍
@@abritishaudiophile7314 Tarun, you're welcome. I find your perspective on audio reviewing refreshingly hype-free and educative. What's more, you approach the education element in a structured and organized way, rather than assuming the viewer already knows the basics (which often they don't) or offering hap-hazard glimpses into the theory behind audio (which only serves to create an air of mystery but imparts no actual knowledge), and thus the viewer has gained something they can take away and apply many times in the future as they need to.
Hi Stelios, I suppose the teacher in my ultimately wants to try and impart some knowledge as you have so eloquently described. Thank you for your support 😉👍
How refreshing to hear another well thought out and spoken comment about Tarun's video. I second Stelios' suggestion.
Another excellent explanation as usual , nothing to complex to try and understand
Thank you John 😉👍
Great video Tarun
Had the Celestion 3,s back in the late 80,s great little speakers.
Thank you Tim 😉
Well done! This is a good resource for people making choices for speakers. It's very well explained and presented with some very nice speaker examples. Just a note, I think you meant 'excursion' when describing 'xmax' (the max travel distance of the driver before fouling the basket or to the point of unacceptable response). The driver 'displacement', usually describes the volume it takes up behind the baffle. Used to adjust the box volume for a particular target. Anyway, thanks for posting this.
Thank you EmE Me. You are correct that Xmax is about excursion rather than displacement. I should have picked it up on the edit.
Very in depth and well explained video. I currently own the first Buchardt SE S400 serial number 1 and have been enjoying them for a little over a year. But I'm looking for an upgrade because of thier bass limitations at higher spl levels. Kudos on your RUclips videos.
Thank you Mario. Used the pair I was ent with my Rel sub and there was a noticeable improvement in the bass.
Well done amigo! 10/10, you got the high score!
Thank you Ron. How is it going that side of the pond?
Ron, An interview or talk with you both would make a great vid. Maybe, the discussion can be around the topic of 'HiFi perspectives' from both sides of the pond.
Wow, I really got a lot out of your video. Very clear and well presented- thanku.
Would u be able to talk about Voigt pipes- its popularity is increasing especially with the rise in poularity in single driver speakers.
Thank you much appreciated. It is an interesting concept but I can’t say I have heard a Voigt pipe speaker 😊👍
I used to have old Infinty RS3000 closed speakers in the 80’s. And the bass was awesome!
You mean all that chuffing sound I hear from ported speakers isn't due to bad singers with a bad vibrato?! LOL...seriously, I really like how articulate and clear your explanations are. Very educational...great video, Tarun.
Thank you amusikpoem. You haven’t heard me sing. It’s worse than chuffing, 😂😂😂
@@abritishaudiophile7314 LOL
I built my own transmission lines from a kit from IPL acoustics. I still have them but they are at home in the UK (I am currently on the continent)...They sounded fantastic. I really miss those speakers
You can’t beat a well designed TL for bass 😉
An excellent explanation of a complex subject which goes a long when it comes to making informed choices with regards to speaker choice. Maybe you could explain the interaction between amplifiers and different speaker designs. Regards
Thank you Lennox. I appreciate you watching and your support. Take a look at my video on amplifier power. I go into the relationship to some extent.
ruclips.net/video/N2LPcU35r50/видео.html
Hi my friend from Britain, thanks a lot for your sympathetic and informative lesson. I agree, that passive speakers did not improve lets say for the last 20 years, but in terms of bass performance , todayˋs active technology blows away all passive concepts, especially in smaller box dimensions, which fit to modern room styles.
best regards from germany!
Thank you for watching and sharing Frank 😉
Certainly good points!
Coming from pro audio world, I've been interested why active/powered solutions have been slow to be adopted in the audiophile community.
I'm guessing it's the perceived lack of mix and match possibilities. However the performance capabilities are undeniable. Passive crossovers are inherently lossy, they exhibit hysteresis, they introduce frequency dependent time errors, they negatively impact an amplifier's ability to damp cone movement.
My primary rig utilizes 2kw active/powered three ways, DSP contoured/fully time and phase aligned... they're stunning. As I'm into multichannel SACD, I've got three identical across the front.
Granted, I've experienced passive systems vastly superior to mine. That said, and as you pointed out, active/powered approach... like Andrew Jones' Navis, offer killer performance in a single box solution.
Best regards back at you!
(I lived in Germany in 1980)
Hi FOH-3663, I have a couple of projects on the go and then I plan to review a few active designs.
@@FOH3663 My guess is the lack of mix and match possibilities and it is a lot easier to think of just replacing the speakers in a current system rather than also giving up ones beloved amp. And for some there is probably the ability to think that their overall system is better than others that have some of the same components. Whereas with powered speakers everyone that owns the same ones has the same quality 'system'. It is harder to puff up ones chest and declare "in my system I have....".
Beautiful speakers beautiful explanation thanks a lot.
Thank you for watching and commenting Randy 😉👍
Thank you for watching and commenting Randy 😉👍
Thanks Tarun, another great explanation of design principles. I lived with a pair of Pro-9 TL transmission lines for 25 years and they still sound great when I visit their current owner. Although not terribly efficient they are often an easy load for an amplifier and consequently well-suited to any amp including valves.
I have lived with all of these enclosure designs at some point and I dislike ABR designs and most ported designs aren't much better. The only ported type I like are folded triangular quarter-wave enclosures. These are a crude horn with the mouth blocked up but a port at the mouth. I built a pair for my son with a foam-damped slot port and could easily live with those. Off-hand I can't think of a commercial design using this enclosure type though. They tend to be tall and slim so quite good domestically.
If you double the price point then panels sound great. I would happily listen to big ribbons or electrostatics - if my listening room were three times bigger.
Also at twice the price point are my all-time favourites - horns. Domestic-sized horns are a bit lightweight in the bass but are peerless for speed and detail. Just add a sub for the last couple of octaves and make the sub an active sealed-box design. If you have ever been to a big outdoor rock concert or festival you may recognise the sonic signature of a bass horn. Horns are a bit "Marmite" - love them or hate them though. I personally have no desire to try any other design.
Thank you John for posting this. I really enjoyed reading about your experiences and your insights 😊👍
That was refreshing, as well as educational. And I like all four of those loudspeakers, they're all handsome in their own way.
Thank you rotaxtwin 😉
I have 39 year old pair of Bang and Olufsen S80 Beovox with 8 inch woofers sealed cabinet and the Bass is awesome they can get low! Nice explanations
Thank you 😉
Beautifully put.
Thank you my friend 👍😊👍
Great video and very well explained speaker type and their differences, as you rightly say it is down to personal choice and this is why auditioning your system is so important and more so in how they react to the room they are being used in. Personally I went with the ATC scm19 because their attack, decay rates and transients suit my room and system perfectly, and the qualities I wanted. Many thanks.
Thank you for watching and sharing your experiences Steve. A review of the ATC SCM 19s is coming so I don’t want to give too much away. All I will say is that I am not surprised that you went for them. Out of interest, what are you powering them with? And how do you find them to drive? They are currently connected to my Exposure monoblocks.
@@abritishaudiophile7314 My pleasure, when I brought the ATC SCM 19 I knew that they were not the easiest speakers to drive, originally I used my Roksan K2 amp very good but not open or detailed enough. Then I auditioned them with the Naim XS 3 and Supernait 3 and although the sound was very good I found the XS 3 combination was lacking the rhythmic drive I was hoping for, don't get me wrong the sound was fabulous BUT... I went back to my dealer and got a Naim Supernait 3 to replace the XS3 and WOW huge step up. Open, detailed, full of Naims PRaT and the sound-stage was beautifully layered and presented also with great channel separation. The sound is now richer much more dynamic and fluid, they certainly require high current delivery to sound their best. I have now added the HiCap DR which has moved things up another notch. So my system is Rega RP6 with Ortofon Quintet Blue, Lehmann Audio Statement Black cube MC phono stage, Naim CD5si which punches well above it's price point, Naim Supernait 3, Naim HiCap DR, ATC SCM 19, Dynaudio sand filled stands. The speakers are tilted back by 3Deg. Hope this is what you wanted.
Excellent detail. RUclips needed this channel. Thanks.
Thank you Z3ROIN. I appreciate you watching and your kind words of support 😉👍
I trust you! Thank u so much for chering all ur knowledge with us.
Thank you Silvio. Very kind of you 😊👍
Great video! Thank you sharing your knowledge.
Can you make a video demo of the speakers mentioned here comparing the differences or similarities of the bass.
Again, thank you in advance!
That you Chris. I appreciate you watching and commenting. I don’t do sound demos anymore for a bunch of reasons, copyright issues, I don’t have the recording equipment to do them justice. I also believe they can be misleading as people are judging my system and room through their system and room. I used to do a sound clip at the beginning of my videos for entertainment purposes and to showcase music that I like but can’t do it anymore due to copyright infringement. I hope you understand and sorry to disappoint 😉👍
@@abritishaudiophile7314 I can't get my head around that justification. I am not saying that to you to fault you but in general.
I watched a lot of video walkthrough of somebody else's setup bragging about their equipment but don't have the balls to show it (demo). Again it ain't you just that justification or notion.
Anyway, I like bass and I make video of my setup. Here it is, I am most certain that you would think atleast one word about the setup without minding all the recording process and what not.
ruclips.net/video/p_2pnWIULBk/видео.html
Keep rocking, I like your channel ver much. Please share more of your knowledge.
i bought a psb image b6 base on your recomendation..just wow! thanks man.
Hi myplaguesify, one of my favourite brands from one of my favourite designers. Glad you liked them and thank you for watching 😉👍
Thank you! It’s great even for viola players! 😊
Thank you 😊
Such a wonderful video, thank you very much.
Thank you for watching and your kind words of support Itsik 😉👍
@@abritishaudiophile7314 My pleasure, truly enjoy the content. Coincidentally, I own pairs of PMC twenty.21, ProAc Tablette 10's, a DIY "Baby Labs Stinger Woden" which is a TL and Klipsch Quartet which uses a passive radiator.... so this video gave me better insight into their bass performance.
Wow Itsik! That is some collection. Thank you for sharing 👍
Good to see you again Buddy! Yummy video 🤗👍👍👍!!!!! I love your clear explanations.
Thank you my friend 😊👍
Always good to see you too Ian
Excellent video, as usual. I've discovered your channel a couple of weeks ago and am enjoying it a lot so far. One little thing though: at 4:00 you state that Xmax ist the maximum displacement of the driver - afaik Xmax normally refers to the maximum excursion and air displacement would therefore be 2x Xmax x diaphragm area (do correct me if I'm wrong here). I've incidentially never actually seen a statistic measuring the displacement per cycle, though I feel this should be pretty important in terms of bass performance.
Anyway, thanks for the great content, keep it up!
Hi Sebastian, I think you are right it is the maximum excursion, peak to peak. Thank you for the clarification.
Another great informative video. Thanks!
Thank you Mike 😉
Fantastic primer Tarun! Thanks so much for all your fair, informative and inspiring videos. A dream future video for me would be a grand tour of the BBC style of speakers, their children and grandchildren. You would be the perfect person to explain their enclosure design, to make sense of all the variants out there and to provide some insight on how some companies are trying to improve on the original design. Audio Note is also using this idea of making the cabinet walls contribute to the sound (at the right frequency) instead of trying to brace them to death. (By the way, I did email Spatial Europe but they don’t have UK distributors for now and Spatial Audio USA doesn’t export to Europe).
Thank you Claude. Shame about the Spatials. Thank you for trying. I agree, the LS3/5a and off spring would be an interesting project. Would have to get an original in to start with. I could speak to Jerry at Falcon.
@@abritishaudiophile7314Thank you for the feedback. Concerning the bass frequency response of speakers, have you ever used any kind of device to slightly boost/extend the bass of one of your sets of speakers and been satisfied with the result? Any contraption, hardware, combination of harware/software, DSP, etc. ? This would be for situations where one doesn’t want to use subs (due to the high cost of fast subs or an apartment with poor sound insulation, etc). Regards.
Hi Claude, I haven’t really played with DSP at home. Listened to a few demos with mixed results but the implementations are getting better and better. Maybe time to give it a try.
I have owned a lot of speakers, close and bass reflex but my Bowers and Wilkins DM2a speakers from some 30 years ago are transmission line speakers and I always kept them because I m addicted to their bass ...I hope manufacturers will make more transmissies line speakers!
Thank you for sharing 😊
One of my favourite configs is ported Isobaric.... Love the sound of some of the Neat Speakers that use this.
Thank you for watching angi733. At some point, I do plan to get some Iotas in for review.
@@abritishaudiophile7314 Momentum SX3i is a peach, incredible powerful taut bass from a bookshelf and fun and emotive to listen to. More so that a Dynuadio Contour S1.4 that I had for example.
Hi angi733, I am hoping to get some Dynaudios in for review.
What a great video! Very clear technical language and explanation. 👌
I have question, with regards to overall sound quality (not just bass) which of the four speakers is your favourite?
Hi Joao, that is tough one. My ideal speaker would have the speed and clarity of the ATCs, the tonality of the Proacs, the bass of the Celestions. The Buchardt’s are a good all rounder. That is a diplomatic answer. If I am using with a subwoofer, I still haven’t decided between the ATCs and the Proacs. Thank you for watching 😉👍
Very nice explanation.
I know very little about the mechanical aspects of audio equipment, but it was very clear and easy to understand.
Just one question: how about sealed box servo woofers? Does the servo system mitigate most of the issues that are typical for sealed enclosures?
Thank you Qorax, servo woofers use an accelerometer in a feedback loop to control the motion of the woofer more precisely. Like most things on this hobby, i am sure it has it’s downsides as well as the obvious benefits. Maybe worth researching and doing a video on if I get one in for review.
@@abritishaudiophile7314 A review on a servo woofer would be a cool idea!
New to the channel and boy the explanations were amazing. Txx man
Thank you Geo. I appreciate your support 😉😪
You should do a follow up covering Isobaric and Cardioid speaker design.
Thank you 😊
You nailed it! So this makes me think- the Bose wave radio was onto something with the transmission speaker box idea.
Thank you Steve. People like to knock Bose but they have had some really innovative designs over the years. They get it right for the market they are going for. Some audiophiles need to appreciate products for what they are intended to deliver even if they do not appeal to them.
Wow there! Transmission lines are way older than Bose Wave Radios.
Hi Tarun and another excellent video explanation of HiFi, this time speaker enclosure design. As it happens I looked at the Celestion when I was putting my system together 30-32 years ago but sadly at around 1K GBP they were just out of my price range at that time so I opted fo the KEF Q90's which I still have and love. Although I never understood or even knew the terminology at the time I now see why the Celestion were more expensive due to the TL topology. I'm guessing my KEFs are ported as the Bass unit is inside the box pointing at the ground and the sound comes out of a metal grill on the front of the box. Anyway thanks again for the super explanation.
Hi Keith, thank you for watching and sharing your experiences. You are right, the Kef Q90s are a ported design. Very well regarded speaker at the time, I sold a bunch of them when I was working at a hifi store in my youth. Kef must have got something right as you are still enjoying yours.
Another great vid. You hit all the important points. 👍
Thank you Alex 😉👍
BRILLIANT video!!! Thank you!!!!
Thank you for watching and commenting Michael 😊👍
Hi, Great territorial on explaining the differences between speakers, A couple of things that you might be interested in one I’ve just recently seen a pair of focal cobalt 806S, Is similar to what you’re displaying I think was on the right hand side I do not know a lot about them they look and raise me good condition they are for sale for €275 I weren’t sure where they were buying, ? . And transmission line speaker cabinet I built a pair back in the early 80s a copy of somebody that I designed something back in the 70s that was in a hi-fi magazine a colleague of mine who was into electronics made a crossover and we put in a pair of Peeles
Thank you for sharing 😊
@@abritishaudiophile7314 Hi , I have been listening to the Focal 806 S , Obviously they like a bit of presents compare with my transmission line cabinets but I can hear a noise coming from one of them, I did change L to R , and there is definitely a noise coming from one of them whether it is a dry joint or whether something else I’m not sure whether I can get inside them to do anything as they appear to be a sealed box I’ll have a look tomorrow.
what do you think it could be any ideas, PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE
@@abritishaudiophile7314 Hi, , The hissing noise is coming from the Tweeter in one cabinet and the other cabinet doesn’t sound like the Tweeter is working at all, Not sure if I should take them back, or see if I can get inside to get to the crossover and do a test on the tweeter,
I suppose in some respects it might be reasonably cheap to rebuild them with a pair of new tweezers and if it’s a component gone in the crossover they should be relatively cheap as well. PHIL FROM THE DARK SIDE OF THE MOULIN.
@@abritishaudiophile7314 Hi, Tarun, yes it is me again, I have noticed that I have a noise coming from my device somewhere I think it might be from my streaming Bluetooth device it’s probably because it’s so cheap,
When I play CD or type or anything else it seems to be fine no noise at all.
PHIL FROM THE DARK SIDE OF THE MOULIN FRANCE
@@philvale5724 worth investigating 😊
Fantastic video. Quality explanation. Thank you.
Thank you for watching and commenting Richard 😉👍
Very good video. I was wondering for your opinion regarding isobaric loaded speakers.
Thank you Dimitrios. It was a good way of getting more bass out of a small enclosure. I suspect modern drivers with better excursion capabilities has meant that they are not so common anymore 😊👍
@@abritishaudiophile7314 There is a small British company, near Durham (north England) named NEAT that makes speakers using this technique. The have a high end series named Ultimatum and recently a mid priced one (I am not ready to tell now). I own the XLS series that are very punchy, somehow sensitive (89db) and to my ears lovely.
@@dimitriostolis4057 I think the bigger Neat Iotas are isobaric as well 😉
I had being enlightened about speakers today,thanks......
Thank you Icey 😉👍
Came across your videos recently. Do you remember the tdl rtl3 transmission line speakers back in the day. I went for a set of tannoy 611s in the end which are not too bad. Use the dual concentric speakers. Used mainly as front speakers for an av system. Well done on explaining how speakers work!
Hi Mark, I do remember them, I used to sell them. I wonder how their sound holds up today? Thank you for watching 😉
@@abritishaudiophile7314 How I wish you sir find the Tannoy D700s and test them for your opinion about those speakers I still remember that sound every musician was in the room in front of me I was shocked thank you for your opinion in general about Hi Fi equipment
@@abritishaudiophile7314 Hi i've owned set of Tannoy 611s for over 30 years, very good speakers, but recently bought a set of Tannoy revolution xt 8f, hoping the hype was true that my Pioneer A-400 amp should be matched with hi end speakers, also for extra bass. Yes the bass is better with xt 8fs, and a more direct sound as the speakers are taller, the drivers are higher up so i can here more treble. Enjoyed your vidoe thanks.
@@alanjipy55 hi just as a matter of interest what do the 611's sound like with the a400? I have a marantz cd63. I was thinking about buying an a400 at some point in the future. Regards Mark
@@markberry8182 Hi I think they are a perfect match, very nice balanced sound, with lots of mid-range, mid-band, lots of volume. The bass really kicks in when you crank the A-400 up a bit. If i was you would get one as soon as possible because it is an old Amp.
Just discovered your channel a couple of hours back and have mindlessly begun binge-watching a variety of your informative videos. Really great content! Have you tried any of the Airpulse speakers? I recently acquired the A300 and am amazed with their quality. I would like to hear your thoughts from this manufacturer.
Hi Sleeper1023, I hope I haven’t bored you too much. I haven’t heard the Airpulse A300 but just looked them up. A few things I can say. If you want the most performance for your money, actives are the way to go. Also, the designer is Phil Jones who founded Acoustic Energy and they make some great speakers. I have heard their active AE1s at a show and was very impressed. Now you have jogged my memory, I need to call them to see if I can get a pair in for review. Thank you for watching and commenting 😉👍
@@abritishaudiophile7314 Thanks for the feedback! Your videos have been really helpful, actually. I'm just getting back into the hobby and haven't bought a set in 8 years. Heard the A300 in store and immediately pulled the trigger and was wondering how they stack up against the current competition. Looking forward to your review! Cheers
Hi sleeper1023, I am not sure if I can get the Airpulse A300s in the U.K. but those AE1s are on my hit list 😉
@@abritishaudiophile7314 Still looking forward to it! If I were in the UK I would've sent mine for review. I'm also planning to get Buchardts for my next pair, but I gotta put the A300 first through its paces and enjoy it.
Hi. I am in the process of considering the ATC sm7. I’m not sure if my Hegel H90would be sufficient in driving the ATC. What are you using to power your ATC speakers? Thank you. I tremendously enjoy your videos and your honest, no frills viewpoint.
Thank you Rene. Ideally, you want something with a little more power but you could get away with the H90 if you aren’t too far away from the speakers and don’t listen too loud. I used it with my Hegel H160 which drove them perfectly 😊👍
@@abritishaudiophile7314 thank you. I am learning a lot from all your videos. Be safe😊
@@reneborromeo9472 thank you Rene. Much appreciated 😊👍
very good learning like always - Thanks!
Thank you Raphael 😉👍
Really brilliant coverage ( which i have only just found), thank you very much. Agree with the comment that you should write a book with this background. Further things that interest: the climate - in tropical locations i wonder if humidity is significant? I had ported speakers in Hong Kong 20 years ago, and the (funny but true) problem was that insects and roaches could infest the interiors of the boxes. You, probably intentionally, do not raise the issue of speaker preference in relation to individual type of music preferred, symphonic music, Bach toccatas, (my own preferences). I parted with my vinyl discs when the aformentioned humidity filled the tracks with mould !!
Thank you David. Very much appreciated. I guess infestations can be quite a problem in those climates 😊👍
And the pursuit of the perfect speaker continues, and will probably continue for ever lol
Thanks. That was very informative and helpful.
For you and me both. Thank you for watching and commenting 😉
Great video again! Would love to hear about cabinet design considerations for magnetic planar midrange drivers!
Thank you Bleeson. If I get one it I will do a video 😉