Changing impedence on yamaha reciever doesn't change volume level..... - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 9 Old 09-23-2017, 05:12 PM - Thread Starter
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Changing impedence on yamaha reciever doesn't change volume level.....

So , just to know for myself i checked the db level before and after changing impedence on my reciever. .. same volume from same song,using same speakers... make of it what you will , just thought it was interesting after some discussions on here...
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post #2 of 9 Old 09-24-2017, 08:55 AM
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Changing the impedance setting on an AVR usually throttles the voltage rails and/or current. The gain structure is not changed. Unless you are clipping there would be no change in volume.

"After silence, that which best expresses the inexpressible, is music" - Aldous Huxley
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post #3 of 9 Old 09-24-2017, 05:43 PM - Thread Starter
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Originally Posted by DonH50 View Post
Changing the impedance setting on an AVR usually throttles the voltage rails and/or current. The gain structure is not changed. Unless you are clipping there would be no change in volume.
thanks ... i was under the impression that it trimmed volume as well...at moderate volume it seemed i lost nothing(sound quality) when i changed the setting to 6 ohm...
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post #4 of 9 Old 09-25-2017, 06:51 AM
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Yup, should lose nothing. And if it was working fine at the 8-ohm setting, I would leave it there as you'll have a little more headroom (though you probably do not need it). If the AVR gets too hot and/or goes into protect mode, switch to 6 ohms; otherwise, leave it at 8 ohms and enjoy.
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post #5 of 9 Old 09-25-2017, 09:11 AM - Thread Starter
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Yup, should lose nothing. And if it was working fine at the 8-ohm setting, I would leave it there as you'll have a little more headroom (though you probably do not need it). If the AVR gets too hot and/or goes into protect mode, switch to 6 ohms; otherwise, leave it at 8 ohms and enjoy.
i just found that with my Wharfdale 10.1s attached that the avr ran considerably cooler , which of course means longer expected life ... it wasn't running real hot on 8 ohm , but on 6 ohm it was hardly warm after about 30 minutes music at moderate volume.... thanks again .. i am always learning something new on here
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post #6 of 9 Old 09-25-2017, 09:38 AM
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Those speakers have low sensitivity (86 dB/W/m) and nominal 6-ohm rating but dip to 4 ohms or so for a lot of their lower range so that makes sense. No harm in leaving it set to 6 ohms if the sound is good and the AVR runs cooler.
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post #7 of 9 Old 09-25-2017, 10:20 AM
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use size 12 AWG cable for best result
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post #8 of 9 Old 09-25-2017, 10:41 PM
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use size 12 AWG cable for best result
Why? Unless the speakers are a considerable distance from the receiver, 14 or 16 gauge should be more than adequate, and will sound the same.
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post #9 of 9 Old 09-26-2017, 12:37 AM
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use size 12 AWG cable for best result
Really? 12 AWG? That's for kids.

I use industrial grade 2/0 AWG cables for the interconnects alone!



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