Can i hook up 4 ohm speakers to an 8 ohm receiver

Seems as if the disconnect would only affect the 'left' speaker of each set. Base on your response, I guess it is quite likely that I damaged the 'old' amp as speaker wiring was traditional.

4 ohm speakers on 8 ohm receiver?

Bottom line - do you think I should just avoid messing with the series wiring and just replace the 'A' ohm set of speakers? I don't want to run the risk of damaging the 'new' amp -- You don't know how much I appreciate your help in this -- floundering for last few days hesitant to hook up new amp.


  • Connecting 4-ohm Speakers to an 8-ohm Receiver.
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  • 4 ohm speakers on 8 ohm receiver? - Speakers - Audio.

What do I set the vc imp matching switch on? Is it ok to wire two speakers together at amp? Thanks for your time solved how to connect three 8 ohm speakers to a 8omh receiver with 2 speaker outlets. Can't find your answer? If your amp is saying 8 ohms, and nothing on fine print is saying it can handle lower, then whatever you do, DO NOT make it see less than 8 ohms.

OK I have a sense we are going 'round and 'round. If the receiver can handle 4 ohms then it would put them in parallel to provide greater power. You can add an outboard speaker selector with impedance matching to maintain an 8 ohm load to the receiver. You can also use an impedance matching volume control for each pair.

These allow you to set the impedance that the receiver sees as well as allowing control of the volume of each pair. Might be useful to do that when you run both pairs together.

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You can't connect 2 speakers in series and get stereo. The diagram that jsmithepa posts is for a single channel not a pair. You could hook both lefts in series and both rights in series then connect them to the same A speaker terminals. That would raise the impedance to ohms which is safe for a receiver with an 8 ohm minimum.

You might see that the 8 ohm speaker varies between 1 ohm and 50 ohm depending on frequency while the 4 ohm speaker ranges from 2 to 36 ohm. Most amps can take all of that, but with different grace. The so called power-cube measurement is a hint on what it can take.

There is one golden rule.

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If the sound starts to suck more at any level it is always because some part of the equipment isn't happy about the situation. And let that govern your use of that volume knob If you want more info about this, just ask, because there is different types of elements that have different typical behaviours and the same with amps. You can dig a hole that is very deep on this subject Best Regards Bo Eriksson.

Putting a resistor into the circuit certainly won't work.

What about loudspeaker impedance?

As SDplus mentioned, the speaker is not simply equivalent to a 4 ohm resistor and is sensitive to frequency in some probably complex way. In fact, if you hooked up an ordinary DC ohm meter to your speaker it would probably read much less than 4 ohms.

Can I run my 4ohm speakers through an 8 ohm stereo receiver safely? | Steve Hoffman Music Forums

FWIW, I have 6 ohm speakers connected to an 8 ohm receiver and it works fine. Naturally I never turn the volume knob to Try it and see. If it sounds terrible, or the receiver gets really really hot, then its no good.


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You might be able to get away with it. I once put 3. You could try 2 ohm 10 Watt resistors in series with each speaker, might mess up the sound a bit, but the impedance would be 6 ohms and more stable.

If the receiver is any good, it should be able to handle the load without a problem, just don't turn it up too much. First things first, you almost definitely can hook up your 4 ohm speakers to your receiver Most amps are pretty tolerant of where the nominal speaker resistance lies. I used to have a device that you wire inline that will modify your current resistance by a halft, fourth, or an eight or 2x, 4x or 8x depending on how you wire it up. It was made by stinger and called an Accumatch and i used to use it to drop the reistance of my stroker and get more power out of my amp.

It is quite large and heavy, but it would cause a short circuit condition over watts or so. Any receiver manufactured in the modern era will have power protection circuitry. Connect the speakers and listen.

Speaker Impedance Defined

If they start to draw too much power, the receiver will probably shut itself down. Could I possibly wire a resistor into the circuit? LinuxPengwin Ars Praetorian Registered: May 13, Posts: Fri Mar 05, 6: