Thank you paul for the insight on speaker matching with AMPS. I have recently purchased a Pylon Audio Amber MK2 speakers for stereo and have also purchased a Marantz Pm7000N 60watts at 8ohms and 80 watts at 4ohms. My speakers are 97db and nominal power of 300watts at 4 ohms. I am very happy with the setup and all my doubts clarified . Thank you for enlightening us
"I can see clearly now the rain has gone". Thanks for clearing up something that so many people have confused. I wish i had you as an uncle or neighbour.
Paul covered this in another way in another video. A small amp driven to clipping is more harmful to speakers than anything short of just a ridiculous power missmatch. Here's what you do. Get an amp that modestly exceeds the speaker's power handling capability and has it's own gain presets. Turn them all the way down. Turn your main volume full up. Ease the preset gains to the highest level that you will reasonably use within the speaker's linear region. Turn down the preamp to the currently desired level. Done. Speakers fully matched to the system and protected from amp clipping and over excursion.
You should calibrate using pink noise at -20dB as the signal. And you can for instance measure at listening position at 85 dB. Then you know that you will never play more than 105dB at listening position. You can of course calibrate using 70, 75. but you must not exceed the max SPL of the speakers ( which sometimes is documented ). There are several videos on youtube that covers how to calibrate studio monitors, and you can do this in the same way. But to be able to do it you need a volume knob on each channel on the power amplifier to be able to do this. And if you can do this, you will be sure, as you said. But I would not try to calibrate while listening to music. Because different music has different loudness levels. Pink noise is controlled.
That was great Paul, I never really understood that before, makes sense now. I keep following your posts and am sure learning a lot about audio and I thought I knew a lot before, ha. Learning all the time and it is fun! Sure appreciate your videos here.
QUESTION: I have a system that I'm VERY happy with except for the bass and treble controls on the stereo amp. They don't add much. I'd like to add a non powered mixer between the CD player and the CD input on the amp. ( the mixer has nice preamps and good bass/treble pots) As long as I keep the output to a minimum, do you see any danger of burning out the CD input on the amp? Thanks (Scott, Halifax Nova Scotia)
Great video i have learned so much from watching your videos like ohm matching and so on I have a 90s stereo integrated amp technics SU-G95 Rack Sytem speakers model SB-A55 3 way speaker sytem 260 watt impedance 8 i wanted louder speakers 300 watts i kind of know what to look for matching after watching this video still learning once u think u learned something something else pops up. 5:11
It is also another problem that the impedance of some speakers are very skewed. So it can vary all the way from 3 to 8 which means that for some frequencies, it might put out many more watts than for other frequencies. And it might be that the efficiency of the speaker is measured at a frequency that is 8 ohm.... it makes a bit more complicated.
hey there, just found some old speakers in the loft, these are the specs for them. I have 6 of them in total but don't have a clue what sort of amp I need for them? I've watched the vid but am still struggling a bit lol: Main confusion is with multiple speakers... Does multiple speakers affect what amp I need? Power Handling: 300 Watt RMS System Sensitivity: 91 dB Impedance: 8 Ω
A very long and detailed answer to a very short question, and the correct snswer should have been : "YES. YOU SHOULD USE AN AMP OF 300 WATTS OR LESS". Paul said that on minute 3.50 of the video: "do not acceed the rated power handlig capacity of the speaker in order not to harm it". All the rest of the information is just nice to have. Note that the data of speaker's efficiency is not always indicated, certainly if you buy it second hand.
hi, i have a 750w + 750w 4 channel amplifier (8 ohms) with a pair of 450w Speaker (8 ohms). i want to add another pair of speaker, what speaker wattage should i add?
Is sensitivity similar enough to efficiency to use the terms interchangeably? I just bought some speakers that have a Sensitivity rating of 90dB. Is that more less equivalent?
Hello Paul! What about the impedance? Many 8 Ohms Speaker can go down to about 3 Ohms at certain frequencies and it will influence some amplifiers performance, resulting in a “bad match” experience for the listener
For bookshelf speakers, the range is typically 82 to 92db at 1watt/meter. With the Avg I see at 85-86. Alot of Amps under 100 watts are typically used to drive these speakers...with varying results but usually good. Maybe an Amp with more current output, headroom, would be better for discussion as some 100 watt amps can't beat some 50 watt amps. Also, hundreds of watts? Doubt it, at least for home music listening for most people.
Also keep in mind a speaker can handle much higher short term busts of clean power than its conservatively rated power. Music is peaks and dips. A lower powered amplifier driven into distorted clipping can damage a speaker much easier than an amplifier with more clean power and clean headroom.
I have a question about a line 6 iv head 150 watts 8 ohms right and left, I was wondering if I could connect with a guitar cable to a speaker that plugs into the wall it has four speakers each are about 8inch to 10inch and has option to 120v to 240volts can I connect it without harming or overheating anything ?
what is watts per channel and watts per speaker. in my av manual, it says it is a 90 watts per channel and gives 140 watts for front, left, right and rear speakers. i am confused. can you please make a video on that?
I just purchased the Graham ls 6 speakers and am planning to pair them with a NAD C399 amplifier. The speakers are 8 ohm with an impedance of 87 db’s and recommended amplifier power of 50-150 watts. The NAD C399 has continuous power of 180 watts per channel into 4/8 ohms. Would that pairing work even though the speakers’ recommended amplifier range (50-150 watts per channel) is lower than the NAD’s (180 watts)?
This is what's tripping me up right now. I'm currently looking into a surround sound set up and was looking at the Sony str-dh790 recevier. It says it puts out 145 watts per channel. But the speakers I was looking at say 70watts Max and I'm worried they might go BANG. Should I be looking for bigger speakers in the 100-150watt range?
I just got a used Sunn beta bass 105 cab out of nerd purchase and I got a Peavey mini max 600w bass. Low volumes, sounds amazing. But at a show, will it blow out the 15" speaker?
Hi, I am setting up a marantz sr6015 with 5.1.2, where I am using thx504L for centre ch and thx 502L for front leg and right. Rp 402s for surround and cs18 C for the atmos ceiling speakers.. Here I am not too sure abt the centre speaker, if it is appropriate for this amp or I should go with thx 502-L? Because in the description it is recommended for 150w amp?
I have 2 3-way component speakers (Audison APK 163) for the front and back. I also have a Audison APBX 10 AS2 Prima Subwoofer. What is the best amplifier for this set-up of 12 total speakers and a subwoofer?
Hello, what happens if I run 16ohm speakers on an 4-8ohm rated amplifier? Does it mean that the speakers will receive less power from the amp in comparison, or are there other acoustical issues? Thanks
Hi, I have a vintage amp and my output is 16 ohms. I have a single woofer ( 16 ohm) and Tweeter (16 ohm) hooked up to the amp through a cross-over. My tweeter is toast so I bought a new Tweeter from Pyle ( PH-391) but it is only 8 ohms. How do I wire this into my set up. My cross-over has a 15 ohm and 33 ohm resistor along with a 3.0 uf Capacitor. Do these new tweeters even need a cross-over ..I am confused. Any help appreciated.
Hi Paul, I have a Denon AV Receiver 6700, currently it is set up as 5.1.4 with all 6ohms speakers and now I would like to add 2 rear surrounds to make it as 7.1.4. I have pair of Denon Speakers that came along with my Denon CEOL RCD-N8 Receiver, it's a 6ohms 60W RMS and 120W Peak. My question is to know whether I shall connect it with my Denon AV Receiver or not, because the Surround output is mentioned as 175W + 17W at 6ohms with 2 channels driven. Could you please advise. Thank you.
I have a amplifier that kicks out 25w to my 50w speakers at 8 ohm. Will this be an okay setup? What will the sound quality be like? The speakers are quite large and big drivers. Thanks dude.
I have got Rms power 250w (8ohms) speakers. and I'm powering it from my pioneer Vsx 7300 which is built to out 125w @8ohms. My question is when I volume up amplifier to the middle. is that safe to drive these speakers?? because 250 divided by 2 is 125. my amplifier has 0-30 numbers on volume knob. I use to keep it in 13 to more safe. and I'm using a yamaha mixer to give the sound input. please tell me what is your idea about this.... and I want to know how many watts are there between two numbers when I do this matching?
Damn, giving you guys a subscription now. Didn't really realize that the speaker impedance mattered on a receiver. Having hooked up a set of JBL 2800 tower speakers to a cheap little sony radio/cd/tape player and it working, didn't think before I bought a new set of speakers. Should have checked my receiver first. Thank god they fall in the impedance rang, but the range seems a little high at 8-16 ohms. Is that just because of how old the receiver is or are there variations on receivers that I should be aware of.
Right now i have a pair of Polk es20 hooked up to a Fosi Audio V3 amp and the volume produced is well enough for me but the thing i dont understand is why i would buy a bigger more expensive amp if it puts out the same wattage? I dont have any other amp to compare to so i dont know if the sound from the amp could improve or if the things i find "lacking" in my setup comes from the speaker or the amp
Hi sir I got most part of your vdo, but I have one serious doubt and its bothering me a lot,so you mentioned a low sensitivity speaker will have around 88db@1w@1mtr, 91db@2w, 94db@4w, 97db@8w, 100db@16w, So the same speaker Will have 6ohm,10watt on the backside,does that mean it will produce 97-100db(lies between 8w-16w from the above chart) at 10watt at 1mtr distance.please help,I am about to build a diy home theater but this part is so confusing
Some one I know bought four 5x7 speakers 200w. They added up 4 times 200 thinking they now need 800 watts to get louder better sound. I hoped to find a video explaining this problem. Sometimes you just can't get a person to listen to what you're trying to say, but someone else they might listen too.
I've read from several sources that the required power doubles for every +3 dB needed. So a speaker with a sensitivity of 90 dB (1 W, 1 m) will consume half the power compared to a similar speaker with a sensitivity of 87 dB (1 W, 1 m) when both are playing the same material at the same volume. On the other hand, turning the amplifier up to gain +3 dB will double the wattage used unless the speaker or the amplifier is reaching its limits. 1 dB is very close to the smallest noticeable change in sound pressure. 3 dB is certainly noticeable but not very much of a change either. So, a small change in speaker sensitivity (or preferable listening level or dynamic range of records or room acoustics) could make a big difference in required amplifier power. Is this generally correct?
You are right - it is only 3 dB less in sound pressure an d it is so much as double less power drawn from amplifier. And it my be at 10 times less THD. That is someting to think about when purchasing power amp. because with grow of used electrical power up the reconstruction of sound quality starts to be problematic due to sizes of powerfull speakers. In reality we experience mostly sound coming from point-like sources. Much power requires more speakers so the size of radiating sound field is growing to much larger making perfection of sound impossible. For gaining reality sound I use minimum dimension speakers limited only by low tones efficiency and amplifiers not more than them at max 10% of capability. The art of sound reconstruction starts with speaker high efficency and little dimension of radiated sound field, not the high power.. For this pupose is developed by me crossover.
I think I learnt this while I was a teenager. Ever since then, I'd only want hi eff speakers. How u do it is like, count how many doubles u can make starting from 1 watt, then 2, 4, 8, 16. In this example, there are four increments of 3 dB, and multiplying them gets u 12 dB, 12 here meaning u can have 12 dB of dynamics above yr speaker's efficiency quote. So for my JBL 4320, running at 96 dB@1watt at 1 metre, if I have n amp of 15 watts or so, my system gets me 108 dB tops.
Hi just want to ask , can i connect my 1300 watts jbl active speaker to a different brand passive speaker like kevler with 300 watts only? thank you in advance sir.
great video! i have 4 speakers to connect to amp. one pair speakers having specs: short 60w, long 90w, impedance 6ohm (recommend amp 25-90w). other pair is already mounted on the ceiling hence i have no idea about spec. Qns 1: i am wondering if i should purchase a 60w or 100w amp? Qns 2: by connecting 2 speakers in 1 channel, does it mean the ampilifier wattage will be divided to feed each speaker?
In this video from 2017 Paul says don’t get too high watt an amp to avoid speaker damage. In more recent videos, he says go big or go home. One final time, please clarify. Thanks much.
Paul, this was a very helpful video. I appreciate that you take time to share you knowledge. I do have a question about this video. At 3:40 you say, “if you buy a medium efficiency amplifier, say 90 dB, that means you can run that thing at an amplifier that’s 50 to 100 watts...”. Did you really mean, “if you buy a medium efficiency speaker...?” Thanks again.
Appreciate the video. I have 4 each 2 ohm speakers and I am assuming they are pretty efficient since they call them premium speakers and I believe Rockford Fosgate made them for Harley Davidson. So 2 are 5.25 fairing speakers and 2 are 5X7's for the saddlebag lids, each 2 ohm rated. Any help on what I should look for as far as specs on the amp would be greatly appreciated. I discovered these four speakers have not been on an amp and I am just trying to go a cheapy route for improved sound, hoping adding an amp would make a nice difference.
I'm pumping 400w into a pair of 50w 8ohm speaker for a total impedance of 4ohms, so far working good with a hi pass filter but can't go lower than 4ohms because I'm running my amp in bridge mode, my Amp has built in speaker protection so it will cut off if the speaker can't handle the power...planing to get bigger speakers soon so my question is, how loud can I get if I'm putting that same 400w into a pair of 8ohm 1200w speakers
Наука
Just stumbled upon this video while trying to figure out how much power I need for a set of speakers. Perfectly explained.
Same
These are the masters, who rocked the 70s .....
Your simple, yet in depth explanations was very much highly appreciated. Thank you!
Where does it say ANYWHERE what an amps “efficiency” level is tho???
😊
@@DeeTeaDee The amplifier's efficiency is irrelevant in the context of this video's subject. He is referring to the speaker's efficiency level.
Thank you paul for the insight on speaker matching with AMPS. I have recently purchased a Pylon Audio Amber MK2 speakers for stereo and have also purchased a Marantz Pm7000N 60watts at 8ohms and 80 watts at 4ohms. My speakers are 97db and nominal power of 300watts at 4 ohms. I am very happy with the setup and all my doubts clarified . Thank you for enlightening us
Many videos and many google searches and finally watch a single video with a pure,precise answer to my question. Thank you.....Very much!
Paul, thank you so much for this video. It took a bit of the magic out of all those specs of speakers and amps!
"I can see clearly now the rain has gone".
Thanks for clearing up something that so many people have confused. I wish i had you as an uncle or neighbour.
😂@uncle
Paul covered this in another way in another video. A small amp driven to clipping is more harmful to speakers than anything short of just a ridiculous power missmatch. Here's what you do. Get an amp that modestly exceeds the speaker's power handling capability and has it's own gain presets. Turn them all the way down. Turn your main volume full up. Ease the preset gains to the highest level that you will reasonably use within the speaker's linear region. Turn down the preamp to the currently desired level. Done. Speakers fully matched to the system and protected from amp clipping and over excursion.
You should calibrate using pink noise at -20dB as the signal. And you can for instance measure at listening position at 85 dB. Then you know that you will never play more than 105dB at listening position. You can of course calibrate using 70, 75. but you must not exceed the max SPL of the speakers ( which sometimes is documented ). There are several videos on youtube that covers how to calibrate studio monitors, and you can do this in the same way. But to be able to do it you need a volume knob on each channel on the power amplifier to be able to do this. And if you can do this, you will be sure, as you said. But I would not try to calibrate while listening to music. Because different music has different loudness levels. Pink noise is controlled.
Probably the most important video in Home Theatre tbh. This is a must watch.
Wow! Thanks Paul, this is the best explanation I have heard on this particular subject. I clearly understand now.
That was great Paul, I never really understood that before, makes sense now. I keep following your posts and am sure learning a lot about audio and I thought I knew a lot before, ha. Learning all the time and it is fun! Sure appreciate your videos here.
paul i truly like watching your videos you give plenty of information on most questions when explained clearly keep them coming we enjoy all
Thank you so much!! No one else is really explaining it like you do!!
I have being trying to learn this for the past 3 months thank you so much
no body can explained these type of things better than you .... love your videos
Awesome explanation thanks for posting and greetings from the ancient megalithic city of TIAHUANAKU BOLIVIA 🇧🇴
Hi Paul
Thank you very much for the info. I'll keep that in mind. Appreciate it. Have a nice day 😊
Thank you for making that clear, I almost made a fatal mistake, you really know what your talking about...
Samee
finally somebody who knows how to explain
Tell me about it 😒
@@restlessascension3260 he just told you
He could explain this to a 5 yr old....
Just installed my first car audio system and made some mistakes. This channel has been so helpful.
Such a simple explanation, I am one of those that did not know but now i do.
Excellent explanation! Simple and straight to the point!
Thank you about this very important detail, I had the same question and got it now.
God Bless!
Thank you very much Paul for the explanation!
Four years late, but i pick up something new on this, thanks.
Thanks for the lesson, you're doing God's work.
Another very helpful video, thank you Paul.
Thanks for what you do. Very well exsplained. 👌
Thank you! I've been struggling with how to pair a receiver with the speakers and speakers to the receiver, this was very helpful
Great info Paul,Thanksfor the well explained topic most people wanted to know
Thanks so much for clarifying that point!
This is so helpful. Thank you so much
Very interesting video. Well explained. Got to find that high dB set of speakers now!
Paul Thank You so Much this issue was driving me Crazy.
Thank you so much!! now i know how much watt i need for the speakers.
Thanks for your insight on this very difficult issue!
Such a good explanation!Thank you for info👍
That was a very good video and explanation. Thank you very much.
This dude is the Oracle of sound engineering for newbies
You're a great teacher.
QUESTION: I have a system that I'm VERY happy with except for the bass and treble controls on the stereo amp. They don't add much. I'd like to add a non powered mixer between the CD player and the CD input on the amp. ( the mixer has nice preamps and good bass/treble pots) As long as I keep the output to a minimum, do you see any danger of burning out the CD input on the amp? Thanks (Scott, Halifax Nova Scotia)
Great video i have learned so much from watching your videos like ohm matching and so on I have a 90s stereo integrated amp technics SU-G95 Rack Sytem speakers model SB-A55 3 way speaker sytem 260 watt impedance 8 i wanted louder speakers 300 watts i kind of know what to look for matching after watching this video still learning once u think u learned something something else pops up. 5:11
I run klipsch r35 at 125w per speaker powered by 80w denon amp x7. Over 10 years low and no problem
Thanks you for the information ... very useful !!
It is also another problem that the impedance of some speakers are very skewed. So it can vary all the way from 3 to 8 which means that for some frequencies, it might put out many more watts than for other frequencies. And it might be that the efficiency of the speaker is measured at a frequency that is 8 ohm.... it makes a bit more complicated.
Does wiring my 4ohm dvc sub at 2 ohm increase bass?
Great insight as always
hey there, just found some old speakers in the loft, these are the specs for them. I have 6 of them in total but don't have a clue what sort of amp I need for them? I've watched the vid but am still struggling a bit lol: Main confusion is with multiple speakers... Does multiple speakers affect what amp I need?
Power Handling:
300 Watt RMS
System Sensitivity: 91 dB
Impedance: 8 Ω
any modern speaker suggestion to match vintage sansui receivers?
Power isn't everything! Thanks for clearing this up! All my speakers are 93+ so I don't have to pump them so much {200/250 Watts)
A very long and detailed answer to a very short question, and the correct snswer should have been : "YES. YOU SHOULD USE AN AMP OF 300 WATTS OR LESS". Paul said that on minute 3.50 of the video: "do not acceed the rated power handlig capacity of the speaker in order not to harm it". All the rest of the information is just nice to have. Note that the data of speaker's efficiency is not always indicated, certainly if you buy it second hand.
hi, i have a 750w + 750w 4 channel amplifier (8 ohms) with a pair of 450w Speaker (8 ohms).
i want to add another pair of speaker, what speaker wattage should i add?
Is sensitivity similar enough to efficiency to use the terms interchangeably? I just bought some speakers that have a Sensitivity rating of 90dB. Is that more less equivalent?
Hello Paul! What about the impedance? Many 8 Ohms Speaker can go down to about 3 Ohms at certain frequencies and it will influence some amplifiers performance, resulting in a “bad match” experience for the listener
best explanation, thank you
For bookshelf speakers, the range is typically 82 to 92db at 1watt/meter. With the Avg I see at 85-86. Alot of Amps under 100 watts are typically used to drive these speakers...with varying results but usually good. Maybe an Amp with more current output, headroom, would be better for discussion as some 100 watt amps can't beat some 50 watt amps. Also, hundreds of watts? Doubt it, at least for home music listening for most people.
Also keep in mind a speaker can handle much higher short term busts of clean power than its conservatively rated power. Music is peaks and dips. A lower powered amplifier driven into distorted clipping can damage a speaker much easier than an amplifier with more clean power and clean headroom.
I have a question about a line 6 iv head 150 watts 8 ohms right and left, I was wondering if I could connect with a guitar cable to a speaker that plugs into the wall it has four speakers each are about 8inch to 10inch and has option to 120v to 240volts can I connect it without harming or overheating anything ?
Thanks so much for the info
what is watts per channel and watts per speaker. in my av manual, it says it is a 90 watts per channel and gives 140 watts for front, left, right and rear speakers. i am confused. can you please make a video on that?
I just purchased the Graham ls 6 speakers and am planning to pair them with a NAD C399 amplifier. The speakers are 8 ohm with an impedance of 87 db’s and recommended amplifier power of 50-150 watts. The NAD C399 has continuous power of 180 watts per channel into 4/8 ohms. Would that pairing work even though the speakers’ recommended amplifier range (50-150 watts per channel) is lower than the NAD’s (180 watts)?
What about the amps damping factor and getting the correct speakers to match?
thank you sir
This is what's tripping me up right now. I'm currently looking into a surround sound set up and was looking at the Sony str-dh790 recevier. It says it puts out 145 watts per channel. But the speakers I was looking at say 70watts Max and I'm worried they might go BANG. Should I be looking for bigger speakers in the 100-150watt range?
Awesome video extremely helpful!!
I just got a used Sunn beta bass 105 cab out of nerd purchase and I got a Peavey mini max 600w bass. Low volumes, sounds amazing. But at a show, will it blow out the 15" speaker?
Hi, I am setting up a marantz sr6015 with 5.1.2, where I am using thx504L for centre ch and thx 502L for front leg and right. Rp 402s for surround and cs18 C for the atmos ceiling speakers.. Here I am not too sure abt the centre speaker, if it is appropriate for this amp or I should go with thx 502-L? Because in the description it is recommended for 150w amp?
I have 2 3-way component speakers (Audison APK 163) for the front and back. I also have a Audison APBX 10 AS2 Prima Subwoofer. What is the best amplifier for this set-up of 12 total speakers and a subwoofer?
that helped me out so much
A Gem of knowledge.
Thanks for a very informative topic
Hello, what happens if I run 16ohm speakers on an 4-8ohm rated amplifier? Does it mean that the speakers will receive less power from the amp in comparison, or are there other acoustical issues? Thanks
Thank you for explaining that clearly. It was educational.
Hi, I have a vintage amp and my output is 16 ohms. I have a single woofer ( 16 ohm) and Tweeter (16 ohm) hooked up to the amp through a cross-over.
My tweeter is toast so I bought a new Tweeter from Pyle ( PH-391) but it is only 8 ohms. How do I wire this into my set up.
My cross-over has a 15 ohm and 33 ohm resistor along with a 3.0 uf Capacitor.
Do these new tweeters even need a cross-over ..I am confused. Any help appreciated.
Hi Paul, I have a Denon AV Receiver 6700, currently it is set up as 5.1.4 with all 6ohms speakers and now I would like to add 2 rear surrounds to make it as 7.1.4. I have pair of Denon Speakers that came along with my Denon CEOL RCD-N8 Receiver, it's a 6ohms 60W RMS and 120W Peak. My question is to know whether I shall connect it with my Denon AV Receiver or not, because the Surround output is mentioned as 175W + 17W at 6ohms with 2 channels driven. Could you please advise. Thank you.
Wow that definitely helped a lot thank you very much.
I have a amplifier that kicks out 25w to my 50w speakers at 8 ohm. Will this be an okay setup? What will the sound quality be like? The speakers are quite large and big drivers. Thanks dude.
I have got Rms power 250w (8ohms) speakers. and I'm powering it from my pioneer Vsx 7300 which is built to out 125w @8ohms.
My question is when I volume up amplifier to the middle. is that safe to drive these speakers?? because 250 divided by 2 is 125. my amplifier has 0-30 numbers on volume knob. I use to keep it in 13 to more safe. and I'm using a yamaha mixer to give the sound input.
please tell me what is your idea about this.... and I want to know how many watts are there between two numbers when I do this matching?
arent most high end speakers usually really sensitive? if so than why do they pair 1.2kw monoblock power amps with them, isnt that over kill?
Damn, giving you guys a subscription now. Didn't really realize that the speaker impedance mattered on a receiver. Having hooked up a set of JBL 2800 tower speakers to a cheap little sony radio/cd/tape player and it working, didn't think before I bought a new set of speakers. Should have checked my receiver first. Thank god they fall in the impedance rang, but the range seems a little high at 8-16 ohms. Is that just because of how old the receiver is or are there variations on receivers that I should be aware of.
thanks! this helped a lot.
I have two 6x5's & two 6x9's CS Series kicker 300watt for 6x5's & 250watt for 6x9's so what amp would be good for those 4 speakers?
Right now i have a pair of Polk es20 hooked up to a Fosi Audio V3 amp and the volume produced is well enough for me but the thing i dont understand is why i would buy a bigger more expensive amp if it puts out the same wattage? I dont have any other amp to compare to so i dont know if the sound from the amp could improve or if the things i find "lacking" in my setup comes from the speaker or the amp
Hi sir I got most part of your vdo, but I have one serious doubt and its bothering me a lot,so you mentioned a low sensitivity speaker will have around 88db@1w@1mtr,
91db@2w,
94db@4w,
97db@8w,
100db@16w,
So the same speaker Will have 6ohm,10watt on the backside,does that mean it will produce 97-100db(lies between 8w-16w from the above chart) at 10watt at 1mtr distance.please help,I am about to build a diy home theater but this part is so confusing
Some one I know bought four 5x7 speakers 200w. They added up 4 times 200 thinking they now need 800 watts to get louder better sound. I hoped to find a video explaining this problem. Sometimes you just can't get a person to listen to what you're trying to say, but someone else they might listen too.
I've read from several sources that the required power doubles for every +3 dB needed. So a speaker with a sensitivity of 90 dB (1 W, 1 m) will consume half the power compared to a similar speaker with a sensitivity of 87 dB (1 W, 1 m) when both are playing the same material at the same volume. On the other hand, turning the amplifier up to gain +3 dB will double the wattage used unless the speaker or the amplifier is reaching its limits.
1 dB is very close to the smallest noticeable change in sound pressure. 3 dB is certainly noticeable but not very much of a change either. So, a small change in speaker sensitivity (or preferable listening level or dynamic range of records or room acoustics) could make a big difference in required amplifier power.
Is this generally correct?
You are right - it is only 3 dB less in sound pressure an d it is so much as double less power drawn from amplifier. And it my be at 10 times less THD. That is someting to think about when purchasing power amp. because with grow of used electrical power up the reconstruction of sound quality starts to be problematic due to sizes of powerfull speakers. In reality we experience mostly sound coming from point-like sources. Much power requires more speakers so the size of radiating sound field is growing to much larger making perfection of sound impossible. For gaining reality sound I use minimum dimension speakers limited only by low tones efficiency and amplifiers not more than them at max 10% of capability. The art of sound reconstruction starts with speaker high efficency and little dimension of radiated sound field, not the high power.. For this pupose is developed by me crossover.
I think I learnt this while I was a teenager. Ever since then, I'd only want hi eff speakers. How u do it is like, count how many doubles u can make starting from 1 watt, then 2, 4, 8, 16. In this example, there are four increments of 3 dB, and multiplying them gets u 12 dB, 12 here meaning u can have 12 dB of dynamics above yr speaker's efficiency quote. So for my JBL 4320, running at 96 dB@1watt at 1 metre, if I have n amp of 15 watts or so, my system gets me 108 dB tops.
I'm not seeing any efficiency rating or DB on the speakers I'm looking at. Is this different for guitar amps?
Thank you!
Hi just want to ask , can i connect my 1300 watts jbl active speaker to a different brand passive speaker like kevler with 300 watts only? thank you in advance sir.
great video!
i have 4 speakers to connect to amp.
one pair speakers having specs: short 60w, long 90w, impedance 6ohm (recommend amp 25-90w).
other pair is already mounted on the ceiling hence i have no idea about spec.
Qns 1: i am wondering if i should purchase a 60w or 100w amp?
Qns 2: by connecting 2 speakers in 1 channel, does it mean the ampilifier wattage will be divided to feed each speaker?
In this video from 2017 Paul says don’t get too high watt an amp to avoid speaker damage. In more recent videos, he says go big or go home. One final time, please clarify. Thanks much.
Paul, this was a very helpful video. I appreciate that you take time to share you knowledge. I do have a question about this video. At 3:40 you say, “if you buy a medium efficiency amplifier, say 90 dB, that means you can run that thing at an amplifier that’s 50 to 100 watts...”. Did you really mean, “if you buy a medium efficiency speaker...?” Thanks again.
I'm extremely confused by this, and can't find info on speaker efficiency anywhere. Does he have some way of calculating it he didn't mention here??
Thanks it helps alot
Thank you! Thank you!
Thank you sir....I learned something today
If we have an 8 ohm speaker rated at 10 watts , how can we calculate what is the maximum current the speaker can handle?
Appreciate the video. I have 4 each 2 ohm speakers and I am assuming they are pretty efficient since they call them premium speakers and I believe Rockford Fosgate made them for Harley Davidson. So 2 are 5.25 fairing speakers and 2 are 5X7's for the saddlebag lids, each 2 ohm rated. Any help on what I should look for as far as specs on the amp would be greatly appreciated. I discovered these four speakers have not been on an amp and I am just trying to go a cheapy route for improved sound, hoping adding an amp would make a nice difference.
2 ohms??
Wire series, makes 4 ohm.
Thankyou so much sir, simply put
So if it's a 2 channel 90 watt amp does that mean it's sending 45 per channel and can 3 speakers be tapped in to one channel?
Good info, thank you.
I'm pumping 400w into a pair of 50w 8ohm speaker for a total impedance of 4ohms, so far working good with a hi pass filter but can't go lower than 4ohms because I'm running my amp in bridge mode, my Amp has built in speaker protection so it will cut off if the speaker can't handle the power...planing to get bigger speakers soon so my question is, how loud can I get if I'm putting that same 400w into a pair of 8ohm 1200w speakers