can 6 ohm A/V Receiver match 8 ohm Speakers. planing to buy Onkyo a/v Receiver TX-SR 605 .?

Question

Can v use 6 ohm a/v receiver with 8 ohm speakers ?
Onkyo Receiver s out put is rated 6 ohm 110 watts.

Answer 1

Hi. You can always use a Receiver with an output impedance that is lower than the speakers input impedance.Problems arise when you try to use a Receiver with a higher output impedance than the Speakers input impedance.

Receiver 6 ohms speakers 8 ohms......YES..
Receiver 8 ohms Speakers 6 ohms.......YES, WITH CAUTION.

Answer 2

Wow. So many incorrect answers. Yes: that combination will work fine. There is no such thing as 'matching' the impedance of speakers to the impedance of the receiver. Receivers are rated by POWER output. But when you measure power, it changes depending if you are using a 4,6 or 8 ohm speakers. EXAMPLE: Yamaha receiver is said to be a "75 watt per channel" receiver. But the published specs are something like: 75 watts @ 8 ohms 105 watts @ 6 ohms 150 watts @ 4 ohms So the measured power numbers are DIFFERENT for different impedance speakers. It does not mean you can only connect 8,6 or 4 ohm speakers if they only print the 8 or 6 ohm value. (In truth - a "8 ohm" speaker is not really 8 ohms. It varies from 2-30 ohms as the frequency of the sound changes. When you see a "6 ohm" speakers, think of 6 ohms as being the average impedance.) OVERHEATING: Lower impedance speakers can draw more current/power from a receiver. This causes heat and can either force the receiver to shut off, or damage the internals and reduce the life span. If you use a 6 or 4 ohm speaker, just make sure: - You have lots of vent room above & around the receiver - You are cautious about cranking up the volume

Answer 3

Wow. So many incorrect answers.

Yes: that combination will work fine.

There is no such thing as 'matching' the impedance of speakers to the impedance of the receiver.

Receivers are rated by POWER output. But when you measure power, it changes depending if you are using a 4,6 or 8 ohm speakers.

EXAMPLE:

Yamaha receiver is said to be a "75 watt per channel" receiver.

But the published specs are something like:

75 watts @ 8 ohms
105 watts @ 6 ohms
150 watts @ 4 ohms

So the measured power numbers are DIFFERENT for different impedance speakers. It does not mean you can only connect 8,6 or 4 ohm speakers if they only print the 8 or 6 ohm value.

(In truth - a "8 ohm" speaker is not really 8 ohms. It varies from 2-30 ohms as the frequency of the sound changes. When you see a "6 ohm" speakers, think of 6 ohms as being the average impedance.)

OVERHEATING:

Lower impedance speakers can draw more current/power from a receiver. This causes heat and can either force the receiver to shut off, or damage the internals and reduce the life span.

If you use a 6 or 4 ohm speaker, just make sure:

- You have lots of vent room above & around the receiver
- You are cautious about cranking up the volume

Answer 4

The correct impedance (Z) matching affects the forward power level into the load and causes an increased reflected power back into the active output.

At high audio levels there is a distinct possibility that you could damage the PA stages of your Amp.

It will cause the Power Stages to run hot.

As for reproduction, there is a frequency response penalty, which you may, or may not be able to hear. You will certainly be able to measure it.

A little realised aspect of mismatches is that, with a high frequency emphasis at the input, a mismatch can actually burn out your speaker coils.

Answer 5

is that japanese...?