I spend a great deal of time updating and answering questions from the webpage. If you have a specific question, please read the relevant article on the webpage and post your question there. Rarely do I get to answer questions posted here in KZread, although others often help out. geoffthegreygeek.com/category/home-av/connecting-speakers/

@Roadking26

4 жыл бұрын

Geoff. Here is what I sent you in an email like you asked. Please let me. Know if you received it. Maybe someone else can chime in if they know. You would think as long as I have been playing I would have ran I to this, but this is a first. here it is. Hey Geoff. I have a Bugera Vintage V22 Infinium. It is a 22 watt combo amp. On the back is a jack for connecting an extension cab. Where the jacks are for the extension speaker, and the jack, and plug for the speaker in the amp it states "amplifier output 22watts 4 ohms minimum speaker impedance. Jacks Paralleled". (The speaker in the amp is 8 ohms) Next to the jacks is a switch that has a setting for 4, 8, and 16 ohms. The extension cab is an Egnater 1x12 and is 16 ohms. If I plug this in to the extension jack, what would I set the impedance switch to? I do not want to damage my amp. You are the first person I have come across online who seems to know what they are talking about. I hope you can help me with this dilemma, but I'm sure there are plenty of people on here that have an answer, but I would like to hear all opinions including the Grey haired geek. Thank you in advance,

@kgriff5537

4 жыл бұрын

Assuming, the connection was done correct. Does multiple speakers connected to one channel affect amps? In other words, do you get the same output from the amp per speakers as you would if you connect one speaker to one channel?

@fusion_fever1592

4 жыл бұрын

Hi sir, thanks very much for the vdo, this one vdo gave me a clear picture of impedance,Hi I have a small doubt. please give your expertise, what will be the formula for connecting two speaker's of different impedance(say 1 speaker with 8ohms and other with 4ohm) in parallel... i know the calculation for series (10+4=14 ohms),I am planning to build a diy soundbar with 2.0 amplifier board (stereo left n right channel), and I want to add 1 woofer to the amp,(thereby total 3 speaker for a two channel amp).

@bryanvega2571

4 жыл бұрын

How i can connect 8 speakers 8 ohm to 1 ohm amplifier (Taramp)

@RoraighPrice

3 жыл бұрын

page not found.

If your speakers are rated at 8 ohms, that means impedance will vary from 16ohm and during heavy, complex bass and orchestral music, it will sure drop down to 3.2 ohms. While 4 ohm speakers will drop down to 1, 2 or zero ohms and drain the current from your amplifier severe. The more high current you provide, the more headroom you have, also with high current amplifier you prevent amp and speakers from potential damage - clipping! After trying 4, 6 and 8 ohm speakers, I realized minimum power amp is 100watts per channel into 8 ohms and close to 200watt into 4 ohm, to drive most speakers. As for 4 ohm speakers or connecting 2 pairs of speakers, they require at least 150watt/ch high current amplifier to drive them well. For a year I drove Dynaudio 4 ohm floorstander with 75w/ch high current amp and that power wasn't enough to take control of the bass and soundstage (stereo mode). It was a torture like driving heavy Land Rover with a 75 horse power engine. While minimum requirements for such a beast is 120hp. Hope this helps someone :)

This is hands down the best video for information on impedance. I'm no expert, but thanks to this I was able to wire my subs down to a safe 2 Ohm load.

HURRAH...that was the best explanation I've seen so far...now I completely get it..!!! Thank you 😃👍

Learning something new is a wonderful thing, thank you Geoff!

Hi Geoff, just subscribed. Thank you for all your help! I can now connect 2 speakers to each amp, 4 in total to the stereo's two amps.

disastrous for the poor amp! That made me laugh! Thanks for such a great video, may it live long on KZread.

O U T S T A N D I N G ! Excellent info on speaker impedance without getting overly technical. Most obliged G3 sir. Really appreciate your altruistic labor here. All the best.

Best speakers connection tutorial on youtube, congrats!

Basically, you never want your Ohm rating to be lower than what your amp lists, because less resistance means there is more current going through the amp, and the amp can literally be fried. Too high of an impedance, and your volume will be too low because there is too much resistance. This video is intended to make one understand what impedance you should be looking for when connecting speakers to an amp, but it doesn't explain the concept of impedance itself.

@flowmaster2010

2 жыл бұрын

Oh wow so I really did fry my amp! And I thought the higher the number the better! I was running 16 ohm to my monoblock 4-8ohm amp! Thanks now I know

Awesome video, impedance explained in the simplest way possible.

Thank you. Currently getting to install a whole home audio setup

@predaking2wings

3 жыл бұрын

i want to do the same, but its a little bit confusing at first, trying to get the right gear!

this is excellent! very good video. every day i learn always something useful congratulations and thanks!

These loads turned out to be very much the opposite of what thought! This is awesome. Now I can build a bigger and better tower speaker!!!

Thanks for this video its very educational, like me who want to know more about speaker matching to amplifier. thanks alot make more videos!!!!

An impedance assigned to loudspeakers is essentially a "nominal" impedance. Impedance varies with frequency so there is an "impedance curve" for every loudspeaker or speaker system. For instance my AR-3a speakers have a nominal impedance of 4 ohms, however this speaker's impedance varies from a low of 2.5 ohms at 900 Hz to 22 ohms at about 45 Hz with various settings of the speaker's mid-range and tweeter controls. The overall impedance at most frequencies is close to 4 ohms. This is something you should know, but in general this video gives excellent advice on how to hook up speakers, but there will be some speakers that deviate from this simple solution.

@Zack-dk3pt

5 жыл бұрын

yea that is the kind of information you would expect to hear given the title.

Very clear and instructive!

Good and simple explanation - gongrats from an electrical Engineer !!!

@behexen0190

5 жыл бұрын

If you think this video did a good job explaining anything, you're no electrical engineer. You need to ask whatever school you went to for a refund.

Excellently done video the only thing I would add is does going on 4 ohms versus 8 ohms change the actual volume sound

What I really learnt was how not to go wrong while matching the speakers with the amplifier. But what I wish to know is whether using multiple speakers in parallel or series make any difference in audio quality.

Thanks for all your great help Geoff! Jesus Bless Your Life my Friend.👋👋👍✌

Very clear, now I understand! Thank you much!

Jeff good lookin out and great source for a start to understanding wiring speakers correctly so I can tweak the system correct and most of not blowing amp..I will be in touch after I write down all my ohms on back of my gear

very helpful indeed! Thank you for your time and sharing this.

im an arsehat coz im old now and sorta thought i knew wat i was doing and ive just learnt i know nothing and need a lot more learning - 'coz optimizing mean beats is funtimes. thanx for the upload.

"now the fun starts" love this part of the video thanks for this

Very clear explanations, thank you, ,,

Sir, thanks it's help me a lot more , waiting for your next tutorial about transformer series & paralal connection . ❤️ From INDIA 🙏

I repair amplifiers. This video is great for my business! Thanks!

@vsmichael1

6 жыл бұрын

Giblet535 me too, letr blo

This shit helped me within the first 2 minutes. Thank you.

thankyou so much. I needed this. more blessings to you

Very informative, im gonna forget in 5 mins but know I can come back and listen again

Geoff, THX for this very helpful Video. My question is : Does wiring 2 pairs of Bookshelf speakers in Series affect the sound quality ?

This was amazing. Thank you.

This makes so much sense thank you so much

Awesome info thank you so much.

And just like that, you became my spirit animal. Wow, thanks for this Geoff!

Impedance (Z) is known as equivalent resistance value of a circuit. A speaker coil has three parameters like coil resistance, coil inductance and coil capacitance, usually known as R, L, C. Impedance (Z) is calculated as R+kL+1/(kC) where K=2*Pie*F (F=frequency & Pie=3.14), R is the coil resistance in ohm, L is inductance value in milli-Henry and C is capacitance value in micro-farad. The unit of Z is ohm. Be remember, standard values of speakers are 4, 8 or 16 ohm. Here, Mr. Geoff clearly explained how we can obtain desired coil resistance with speaker having different coil resistance, like getting 4 ohm with 2 X 8 ohm speakers, or getting 4 ohm with 4 X 16 ohm speakers etc. to match desired value of output of amplifier.

@Autigers2013

Жыл бұрын

Do you have a video I can watch? I would totally watch!

@techmonster2632

Жыл бұрын

why its called impedance not normal resistance , why the change in names

@BADNEMMUSIC

Жыл бұрын

​@techmonster2632 because its in AC current

Thank very much for this video clip.now i understance the function of this impedance to the amp n speaker

thank you very well explained

Great video. Thank you so much.

The back track music completes this video. Well done. What's the track?

Great video!

Most understandable instructions ive watch

Your videos are awesome. I need your help today and I m sure that u r the one who can help me with. I have two speakers of 50W, 8 Ohm each. I want to make a woofer so how to wire these both speakers and what type of amplifier ( Power rating) I have to use. pls explain me about it.

I really like your explenation thanks

I see! Thank you!

You can use a double pole double throw switch to change between two speakers series and parallel. I used a quadruple pole double throw switch on 3 12 volt batteries to switch easily between 36 volts to run an SMSL SA98E amplifier I have and 12 volts for other devices and/or charging. I unfortunately can't show you how to wire it in a youtube comment though.

Thanks for wonderful information. I want to connect 8 ohms qty-12 speakers in my house. Can I? If possible what will be wiring configuration from speakers to an amplifier

thanks...im happy to know that...i thought that the amplifier only support the ohm that recommended..example 4-16ohm for both channel...this video show us that it divided for both channel 1 channel support 4-16ohm.. another channel also 4-16ohm...thank you for sharing

This vid is very helpful!

thank u very much for making this video.....

Thanks ....Very clear explanation

omg this stuff makes my head spin

@accidentkilla1265

2 жыл бұрын

True that

thanks on this, very helpful on us beginners like me i understand very well. i have one question. if we install two 8 ohms speakers it says total of 4ohms. is there any possible way to make it 8ohms? or not.

@MrArvin0306

4 жыл бұрын

a 4ohms resistor in series with the 4ohms, 2 x 4ohms = 8 ohms in series.

Useful video 👍👍

best vid yet on youtube i have a 600 watt amp (( 4 - 16 ohms )) need to run 4 mid speakers and one 750 watt sub can do it now no need to buy a over priced amp again ,,

Still totally no idea what is impedance. Title of the video should be "impedance calculation", not understanding impedance.

@Geoffthegreygeek

7 жыл бұрын

Fair Comment Junn. I find most people don't want to know the technical details, just what to do about impedance, hence the lack of a technical description. That is why I provided links in the video to my various articles where there is a better explanation. perhaps start with geoffthegreygeek.com/understanding-speaker-impedance/.

@denisroscic6267

7 жыл бұрын

Geoff the Grey Geek

@AudioReplica2023

7 жыл бұрын

totally agree

@zeeshanrahatsultan9757

7 жыл бұрын

my brother impedance is just a fancy word for the electric resistance of your speaker coil

@vintagestereobuff7005

7 жыл бұрын

Impedance is defined as TOTAL opposition to current flow in an ac circuit. This total opposition consists not only of dc resistance, but inductive reactance(measured in ohms), and capacitive reactance(measured in ohms).

Good notes,📝

Hi, great video... I have a question... I have an integrated stereo amp with 4-8 ohm and 120 watts and a Bose 301 speaker with 8 ohm impedance at minimum 10 watts and maximum 70 watts. Is the best way to just connect the speaker to one channel on my amp, or is there a way to connect it to both channels to get more out of the speaker?

That makes the amp happy

Thanks Great video channel

This was great. What about a 3 speaker system? Passive L, R & Base connected to a "two" amplifier system, i.s. amp with single L&R outs.

Thanks you for the information . I have an idea how to use ohms...

ty for this video

Helped me.,,, Thank you

Thank you very much

Thank you for sharing sir new supporters here

Hi sir, this is a grear video ever .just a question sir can we apply this to combine the 2 of the same kind home theater 5.1 speakers too? godbless u

Here is a graphical way to arrive at equivalent resistance of two resistances in parallel. Draw a horizontal line near the bottom of a piece of paper. That is the ground. Draw a vertical pole coming out of the ground whose height is proportional to the larger of the two resistances. Some inches away from the first pole, draw a second vertical pole out of the ground whose height is proportional to the second resistance. So, if you are connecting in parallel, an 8-ohm and a 4-ohm resistance, one pole should be twice as tall as the other. Now draw a line from the top of each pole to the base of the other. The height of the point of intersection of the two diagonal lines above the ground is the equivalent resistance of the two in parallel. (It doesn't matter how far apart the poles are.) One important thing you can see from this method is that the equivalent resistance is always less than the smaller of the two.

Great solution. But while it talks about the impedance ..what about the watts? Suppose I need to connect 4ohm full range (15 watt) + 6 ohm (30 watt) tweeter to an amp which has 100 watt power and 6 ohm Minimum Load Impedance, per channel. Note: 2 speakers will be connected to a single channel (100 Watt/6 Ohm), so total 4 speakers(2 full/2 tweeters). So as per this video, I need to add one 6ohm resistor before connecting 2 speakers in parallel. But then should I also need to match the watts? Or should I go with the lesser watt resistor, say around (30 or 50 watts per channel).

My main speakers are Infinity RS III/B that are 4 ohm, but actually can drop down to 1.8 ohms at specific frequencies. Because of their EMIT tweeters, which I really like, I don't want to switch to a different speaker.

Love your channel. everything easy to understand for the regular man. Q: I have a 100w x2 mini hifi amp that is rated for 4 to 16 ohm speakers. I have two 3ohm 300 watt Panasonic speakers, will the amp be ok if I connect the speakers to it?

@karollepeto8924

2 жыл бұрын

It will, but only if you connect them in series. Then the impedance will be 3+3=6 Ohm. In parallel they would have 1,5 Ohm which is not in the range 4-16Ohm

(for home application) if we use an active subwoofer will it still draw power from the amplifier and still have to formulated first or just plug it in into a pairs of the socket (back L & R maybe) since it already have it own power source??

Awesome video. Thank you for the time in making such an informative and clear video.

lol @ the background music. It's like department store shopping jacked up on roids and looping endlessly. but thanks for the info! :D

One question about how an amplifier is considered,as a constant voltage source,or as constant current source?

I have a 2x12 cabinet and the speakers in the cab are both 8ohm speakers, do I use a head that is 16 ohms or 8ohms? not sure if they are in series or parallel.

4 ohm speakers draw more current, 8 ohms speakers draw less current by a factor of 50 percent less, for home theatre a set of 8 ohm speakers is realistic as you will not place as much current demands on your PSU as opposed to a 4 ohm set. 4 ohms speaker sets are for the Car Audio spectrum as these can be powered by the Car alternator when the engine is on providing the needed current and power.

Can you please explain about amp with 4 channels A, b output

One thing the video is missing is the volume control(s). To my knowledge, i believe only 2spkrs pr volume control can be wired, but what about the center speaker ? ( on a 5.1 system).

thank you

Very good

So i ordered 2 subs that came with the box and amp ... im trying to figure out how to wire the subs to the box theyre both 4ohms boss cx122.... i have a 30ft speaker wire how should i wire them?

Nice video

It would be nice to add why low résistances are not appreciated as loads , a short sentence like « at constant output power of the amp , a low resistance will increase dramatically the current and as a possible consequence the load (speaker) may heat too much and burn or the output transistors of the amp I like very much the inside view of the two types of speaker selectors , thx very much

If I associate speakers with diferent impedance value, respecting the minimum impedance of amplifier, is ok?! For example: Associating a speaker midrange or even a woofer 4 Ohms with a tweeter 6 Ohms in a amplifier 4-16 Ohms is alright?! Thank You!

I have 6 and 16 ohms output speaker on my amplifier, how many ohms speaker should i use if I conneck 6 speakers per channel? Thank you & more power.

I would like too ask you about my project. I'm working on my project to build tower speakers using : 1 pc soft dome tweeter 8 ohm 1 pc midrange 8 ohm 2 pcs 10 inch woofer 8 ohm 3 ways crossover system For each speaker My question is how to connect those 2 woofer so i they still have 8 ohm impedance as the tweeter and midrange driver. Thanks a lot...

But I still have one question: I have a marshall mg100dfx turned in a head.. and this amp has 100w. At the loudspeaker output it only says (use minimum 4ohms) so my question is: I own a marshall 1936 2x12 in parallel so each speaker has 8ohms and 75w... Can I plug my mg100dfx in stereo (in only one speaker) with my joyo bluejay bantamp on another? The higher resistence (8ohms) of the cabinet will low the voltage of 100w and I won't blow my 75w celestions? Thank you very much!!

Am I able to use one 6 ohm and one 8 ohm speaker for one output (and the same for the other) of a 6 ohm minimum amp? If so, would I wire in series or parallel?

Can it be connected a 16 Ohms tweeter (with the filter capacitor) to the 4 Ohms full range driver? What would be any difference in sound? Is it safe for both tweeter and the full range driver? What the method should follow? Kindly explain? Thank you.

love that cheesy background track

@Decco6306

6 жыл бұрын

it repeats so often omg

@benedictcruz9934

5 жыл бұрын

Impulsegt1 sounds very 90's

@etherlords88

5 жыл бұрын

early 90s cityscape documentary backtrack...

@gristlevonraben

5 жыл бұрын

@@benedictcruz9934 odd, it sounds 70's school film to me

@Jenuin

5 жыл бұрын

Impulsegt1 exactly. Very retro.

Give me a link for the background music used thats sounds cool

wish I would known this before running my amp to 1 ohm. it started smoking

@angelinetecson4026

5 жыл бұрын

Same for me hahaha

Sir, what will happen if you combine 2 channels of 4 ohms each (Left and Right of amplifier) to a 4 ohms speaker? Thanks!

Hello my Sony davtz145 having 8 ohms amp and speakers also 8ohms,now I .want to increase 2 more spekars in rear channels can I increase?

Hello, i have a 5 channel amplifier my front speakers are 5x7 4 ohm and rears 6x9 4 ohm they take 110w rms and my amplifier produces 110w x4@ 2ohm and only 50w x4 @4 ohm is there a way i could wire it to make the high speakers 2ohm or would this damage the speakers? I feel i am not delivering enough watts to my high speakers

So how this work does the chip detect the value of your speaker not to burn them as if I use a chip that works with 9 & 24V for 50W max & I use a lower speaker like 20W 4ohm I could potential burn the speaker at 24V amplifier

I would think that a series resister would be a speaker fidelity disaster. This would be the same as using extremely high impedance ( long & thin) cables which demonstrably cause frequency based filtering & distortion. You really want the total speaker wiring impedance to be I know this is a controversial topic but IME within reason, it's true. However, whether it makes an audible difference on a specific system greatly depends on the performance of the rest of the system. Theory of errors says total system errors is the square root of the sum of errors squared = (E1^2 + E2^2 + ..... En^2)^(1/2). What this means is that fixing the largest error is the only thing that may noticeably improve a system but only if it is very significantly larger than any other error. If there are several errors of similar magnitude, noticeable improvement will only be achieved once the last of them is fixed. This is all fine if you can actually measure distortion and filtering problems in a system. Often, that is extremely difficult. You many be able to implement a null test in some situations but you have to be scrupulous how you do that and probably wont be able to fully isolate problems, especially after an amp or with digital devices. So your only option is to go over every single bit of kit, connection and cable and check it's compliance to a high standard. Check, gain structure, get unity signal at the earliest possible point and maintain it at every step. Check impedance matching is correct. Check connection impedances. regularly service gear and use a quality cleaner/conditioner/lube on all controls, pots faders, even trimmers something like Deoxit F5. It's expensive but wort it. Don't use cleaners from cheep chain stores they don't do a good job and don't last.