Little British Monitors: DIY Transmission Line (?) Speaker Kit
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- Опубликовано: 3 дек 2018
- Little British Monitors Kickstarter: kck.st/2TJQlil
24bit 192khz USB DAC: bit.ly/2QwMVjZ
Test Equipment: www.welectron.com
Patreon: / marcoreps
Samples from:
1:40 = • Igorrr - Cheval [OFFIC...
11:00 = • GRP A4 Jam
11:20 = • Ruby My Dear - Clinpf ...
11:36 = • CocoRosie - Lemonade (...
12:00 = • Harmonizing samoyeds 
Наука
Your dogs sound like they could use a little bit of WD40 …
😂
They sound like geese haha
Glad to see Falstad's circuit simulator getting more exposure.
Good for qick hacks. For complex rf or audio i am using microcap, its free now and runs easily in wine. You can even loop wav file through your amp design, and hear it, if harmonics analisis is not enough
The branch of aerodynamics you're thinking of is probably just called "acoustics" ;p
I prefer "airwave aerodynamics and surface reflection studies" myself
Fluid dynamics. Herro
Fantastic video! I too have suffered from unwanted bongo drum artifacts in the past. Glad to hear that the situation has been remedied.
Great to see them tested and reviewed properly😅
Had to bring in my 2 experts for this difficult task ;)
You didn't do a bad job Naomi, and I think Marco managed to use even more glue than you! ;-)
You did a superb job and it's very much appreciated :)
Don't underestimate yourself ;-)
oh hello, i saw you in my make magazine lol
I love the editing on your recent videos! It adds to the humor in a playful way, without any overkill.
Absolutely briliant, as always. The attention to the details is outstanding. Congrats Marco.
Awesome ! Btw, 'the nuances of your signature bariton' and a 'level 4 audiofile'.... I couldn't explain it any better ! Wonderfull !
Typo in thumbnail. I'll have to revoke your RUclips license.
What? Where? I see no typo 😇😇
@@reps "litte"
Get some varnish or paint on them quick, before they look like bananas.
My thoughts exactly.
Neat kit, looks well made. I like the doggy choir at the end too!
Igorrr!!!! First video I've seen from yourself, very interesting and amusing. However, Cheval sealed the deal. Subbed.
I built loads of transmission line speakers in the 1990. It was a really fad at that time and everyone wanted them and built them.I have to say they did sound very impressive but they were a lot of work to build.
The dogs in my room went nuts!! Thanks for the doggy moment! Great vid!
Cool little project. Good job. Great video.
Wow! What a pair of speakers! Fantastic! 😮
Very nice review, Marco, and also very nice English and refined humour! Let us know how you like them after burning them in for a while. All the best, Rob.
Also great vid... speakers loook like they sound great. I'll have a look
(don't quote me on the port principles, it's probably all wrong) (first)
Lolz
As a professional in having no Idea what I'm talking about I suppose you are perfectly right. I've seen rectangular designs for bass reflex ports but only in the context of subwoofers. May be extensible to full range speakers.
Fact of the matter is all principal port, channel and chamber constructions are idealised approximations. A real port is always all of these things plus extra surprises the designer never bargained for, at least not until he built the cabinet and fine-tuned it until it sounds and measures like it does the right thing.
Narrow and long BR ports are not anyhow a rare idea, just inconvenient to design because you can't just keep sawing off pieces off like a tube until it does the right thing, and also ABS or cardboard pipe might come out cheaper than an extra piece of wood and then those extra channels to be routed for it. But with a wide, large-area slot like that and a long path you can reduce breathing noises from the port, and this is pretty much necessary in high-quality subwoofers. Not so critical in tiny little monitors, but i appreciate that the design is space saving.
@@SianaGearz Great informed comment Siana :) The LBM uses an unusually long, folded and damped slot port. I call it a transmission line. Acoustics doesn't care what we call it however, and an element of all behaviours occur in most systems. I would add that in a tiny speaker (that goes relatively low), the port area is just as important as with a subwoofer - the whole scale is just somewhat reduced.
Firstn't.
Actually, i expect more from this channel than building simple kits!
I enjoyed watching this video. Thanks.
Wow, I did not expect you actually making a video on your hi-fi system.
Wie immer sehr gut gemacht, Hut ab
Nice to see they included a Flux Capacitor. All you have to do is put them in your car and drive @88 miles an hour and you should be able to hear them. :)
I love your sense of humour😃
First video ever watched so I’m not sure what your channels about .... but intriguing and subscribed for now ... thanks ! Hey
Impressive speaker
Thanks for sharing 😀👍
This guy is friggin AWESOME!!! So funny but at the same time accurate.
11:46 for more woofers!
Brilliant, You remind me if the Mike Myers comedic character Dieter Dirks. There are some clips of him on RUclips; Old SNL ( Saturday night live). Keep up the good work..
Nice new speakers! It's really worth it to have some good audio at your desk, especially when you sit there for several hours each day. I've got a couple electrostats and really wouldn't want without anymore (or lower quality for that matter). Enjoy!
ESL57's on your desk? :)
@@Audio_Simon Nope, final 0.3 hybrids behind the desk. There is about 70cm space between the wall and the speakers and also a bit between the speakers and the desk.
c1.staticflickr.com/5/4814/45455485364_5d818f0c53_h.jpg (picture of the setup)
I would have never guessed you're an Igorrr fan. They're pretty amazing.
You Kanal is pure gold
Gosh darn Marco, you're absolutely hilarious
Lol, the "Wolf pack" reacting at the end is precious ! lol!
(actually the two lovely dogs are more like a ""woof pack" :)
Great video Marco!
An excellent canine duet to test the new monitors
Thank you for turning me on to Igorrr. I didn't realized I needed French death metal dusted with "operatic like" vocals in my life!
Class A saves lifes, especially in the winter!
You should feature your dogs in every video ... they are adorable!
The last 4 videos were product placements..... I want to hear something about YOUR projects: what is the osmu doing ? What is your cnc doing ? What is your laser doing ?
I don't want to see so many videos about products i dont need or cant afford. You rock 3 3d printers at the moment, but i haven't seen them in use since..... I dont know.... 22 videos (that would be the cnc spindle tolerance tester). Please do videos about your, not other peoples projects. Or at least modify i dont know your tesla coil to take analog signals or something like that.
I agree, the project and diy video's are more interesting to me. I highly despise ads and product placement.
@@ijskolibrietje Well, the product he reviews are then "Garantiert gute Qualität, oder eben nicht". His own projects are also very interesting, but he must work as well and doesn't have time to do full-time project work. Also some projects needing much thinking and problem solving before "big progress" is made again.
Without Marco I wouldn't have heard of the LBM's, now I know them and can order myself a pair.
@@jensharbers6702 Thank you Jens!
@@ijskolibrietje And I forgot, without Marco I wouldn't have heard from the mighty TS-100, the Cetus 3D and so on.
Thanks Simon, it is the truth. Every project comes to the "Well, I'm fu**ed" Point. A misspell in thousands of lines of code, a Via you have forgotten (Or the manufacturer messed it up), it takes time. ^^
Oh good, looks like we have a Patreon whale! Fund him real good, Paul!
Those dogs are so cute!
Igorrr!!!! Du wirst mir immer symphatischer!
Marco, FYI... High quality switch-mode amplifiers exist... I have a set of them built into my Pioneer receiver. The Pioneer engineers have done an amazing job. Obviously, no snob would ever buy amplifiers like that.
Good demonstration of the 'woofers' at the end 🤣
Speakers and dogs: both very entertaining. Thanks!
Good video. Dog part is awesome.
great, i got 5 dogs and they all started barking and howling thanks to you ;)
i can hear the difference its massive!
Thanks for sharing !
1:35 Turbo molecular pump rotor on the desk between the monitors? Nice. I work with the bigger 250mm flange diameter ones on a big magnetron sputtering coater. There are 190 TMPs, 2300 L/s each. The coater is 100 meters long and has 32 target cathodes with 150kW Trumpf MF-generators on each and some old 60kW DC ones.
the single smoothing cap for all 4 channels looks a bit crappy, but apppart from that i'm even slightly tempted to get some
Haha, comedy genius. Loved this video.
Igorrr und Ruby My Dear sind wirklich ideal um Klangqualität zu testen ;)
Top video. Nice lab.
All my high end ($10k+) builds use birch ply. it has a higher resonant frequency, above the woofers range, compared to other common materials.
You made my labrador sit up, turn and tilt her head and then stare at me accusingly. Nice vid - really nice speakers.
Marco, LOL. I expected to see a sound spectrum analysis of the doggies' spontaneous performance. 😁
cant argue when even the dogs approve
The end of the video reminded me of the RCA Victor dog, sitting in front of a cylinder phonograph... ;-)
I love the end of this video.
Looking good!
That is not a Transmission line.. It's simply a flat bassport, making it reflix:)
Great job tough!
Very nice video on many levels, especially the doggy choir (very adorable pups). Thanks for sharing.
The end was adorable lmao
Love the pooches! Great video.
What LED light do you use in the video at the time stamp 1min 15s?
Hey Marco, is that a rechargeable light panel in the shot at ~1:16-1:21? Where would I find it?
Hahahaha these videos... you’re my favourite and most interesting channel by far hahahaaa love your engineering commentary + sense of humor twist. Ohhh yeaaahhh!!
Cute puppies, great video
I think my 40€ ALDI 5.1 speakers from when 5.1 speakers were actually trending must serve a little while longer...
i have 2 dedicated power amplifiers per speaker, does that qualify me?
Yeah birch is good for speaker enclosures
You seem to have and external sound card. Do you think it makes a difference in sound quality, which a normal person could hear? I have just built these speakers and those sound very very good in my opinion.
How to find a similar ruler (8:17)? What is the accuracy?
Those dogs are awesome.
plywood is great but cheap and accessible is simple hard white plastic foam which used to packaging electronics, also i've noticed that monitor stand is itself a great anti-vibration platform (a line which vertically fixed with center and all gravity to the circle stand, which is only side of triangle) - i put speakers in plastic foam on the top of monitor = no vibrations at all, not sure why, just works.
Could you share the links to music videos you showed?
Great idea, thank you, added to the description!
how is the software called you use to simulate the circuits?
www.falstad.com/circuit
I checked the Kickstarter.. no mention of the drivers used... Why? :( Are those full-rangers for tweeters? With a 3" woofer? Why? Tweeters are rarely using cones and instead use domes (and I use ring radiators in my own DIY speakers). Perhaps a Peerless PMT30N18AL04 full-range as the tweeter? Those things cost $4.90 each if so. Though I do like the brand. "Woofer" perhaps Aurasound NS3 (actually also a fullrange)? I like Aurasound too; I use a NS10-513-4A woofer in my DIY "subwoofer" module. Maybe that makes the tweeters Aurasound NSW1s. But the surround looks smaller hence my guess of the Peerless. I don't like pairing 2 full-ranges together. A full-range always has compromises in it; you have to keep a cone and motor assembly light to reproduce high notes, but that will limit bass output. You can easily pair a traditional 3.5"ish woofer with a traditional tweeter and not need full-ranges because those sizes are close enough. It gets a little bit tricker to pair a 6.5" woofer with a 3/4" or 1" tweeter when you have to worry about cone breakup in the woofer and/or low-end distortion in the tweeter but that's just not a big problem at speakers of this size and again I don't know why they'd use even one full-range driver let alone 2. I use 3/4" Vifa XT19s, 4" Hi-Vi M4Ns and 7" Adire Extremis in my DIY speakers and my tweeter/midrange difference in size is actually greater than the drivers in this speaker but it's not a problem because it is still well within reason of traditional speaker driver designs.
I'd rather have something from DIYSG where specs and designs are actually discussed (DIY means DIY and why buy DIY speakers that go the commercial route of just talking about how the components are "high quality" but not their Thiele-Small specs, or even who actually makes them), but, hey, cool upgrade over the old stuff. Not sold on the vibration damping things at all. Lever effect from the base. Why. You want to prevent vibration from coupling into your desk (or speaker stands) but that idea looks like it's going to actually be creating problems as much as it solves them because the lever effect will amplify the vibrations (which it then has to also dampen).
I'm sure the speakers sound reasonably good but you can do better for the price and these are "DIY speakers" that aren't actually in the proper spirit of DIY.
Speakers in the video are Dayton, which is "house brand" of Parts Express, an on line retailer of electronic stuff www.parts-express.com There is a similar 4" speaker, which is much nicer and better built: # 300-458 for under $100 for a pair from them on their web site.
@@shazam6274 Good call. I've used some of their stuff, not that familiar with their full-rangers though. I bought my M4Ns from them (also have bought other speaker drivers from them, but still not full ranges). Are the tweeters (or "tweeter-sized full-ranges" anyway) also Dayton? I didn't see ones like that from Dayton on there. It still looks like Peerless to me.
I'd rather have seen RS100 used over the ND91 or whatever that full-range is... There's even a paper version of some of the RS drivers which won't have the cone breakup the aluminum ones do (though I have only built systems with the RS125 and RS180, not RS100).
(In my defense, Aurasound does sell a NS3 with a black cone that looks quite similar from the front! They have the white cone version also)
Note that I recommended DIYSG which also uses lots of Dayton stuff. :) I like P-E.
@@korgied Check out the Tang Band full range drivers at Parts Express. These have no phase or crossover distortions. There are several 4" which are quite good. Tang Band's web site has optimized box drawings.
Interesting catch on the fullrange tweeter. Well i think the idea is that he wanted to low XO frequency so that the excursion of the midbass driver doesn't translate to intermodulation across the vital parts of the midrange. The high excursion would result from a fairly low Fs of just over 60Hz together with a small area. Dayton crosses over at 2.5kHz (can't go lower due to its tweeters, and this is often considered the worst point to cross over, with 4KHz+ being preferred if sub-2KHz is not an option) and this at 1.5k. Then he mounts a diffuser plate to get rid of the mid-heaviness of the fullrange, or for some other reason?
It's not worth getting hung up on the 'full range' buzz word in the datasheet headlines, it just helps sell more drivers to people who are scared of crossover design.
If you want to design a great speaker there is no substitute for buying multiple drivers and extensively test them, then choosing the best for your application. Your credit card may not appreciate it but the end result should speak for itself.
love the dry humour
Danke szyn!
Can you calculate a big transmission line for me? 35 hz FS 38 cm woofer...
What software did you simulate with? Looks fun
they got the canine seal of approval
Great commentary. 👍😂
That JS circuit simulator is also f*cking cool!
Dog trick was a good way to convey their linearity, nice touch! Meanwhile, here, the cat woke up, stood up, and stared at my laptop with WIDE eyes :-D I'm pretty sure that contradicts my statement about it being a valid test as these X1 Carbon speakers are not known for their realism and audio 'rasp' qualities :-D
this is great
Nice, and to top it off, you have Terriers :)
Awesome as always. Nice project - are they from Britain?
The ending was funny 🙂
he's from Germany
Tobimai ... obviously. I’m talking about the speakers. Having looked it up they are indeed made by a guy in Britain
nice how much are there as a kit
Hi dude..can u make project esc using tmc4671..I really hope you can make some video about it..
Link to the BBC study please? I recall a similar study by Visaton that concluded that MDF was close to the best beating plywood, short of going for something like concrete with rubber inlays.
Unfortunately i can no longer find it since i read it about 20 years ago, so no link from me. You'll still have to give me yours. Not a fair exchange, i know, but perhaps you can just request it from Visaton.
downloads.bbc.co.uk/rd/pubs/reports/1977-03.pdf
@@reps Thanks
Could you please consider posting some merch? I’d really like to buy a branded t shirt or zippered hoodie, especially with Christmas coming up. A good friend and I are big fans of yours.
Danke fürs neue Video! :)
U7
Those pups!
Id like a link to the video that got the dogs howling. :)
1:07 lool I have those exact monacor crossovers built in a project
Ruby my dear!!!! YES
why dont you use shure microphone?
What is that program you use to show circuits?