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David Harper
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Joined: Aug 7 2014 - 2:23pm
AVR output

here's something interesting. I have a Denon 7 channel AVR with a stated power output of 80 wpc 2 channels driven. There are at least two audio publications which put HT receivers on a test bench and measure their power output first into two channels and then into five channels driven simultaneously.One is Home Theater mag.I don't remember the other at the moment. Anyway, my AVR is advertised as having 7 discreet power amplifier output stages. HT mag measured an output of just over 90 wpc into two channels and an output of just over 60wpc into five channels driven at once. Now, since the AVR only has one power supply,how is it possible that it delivers a total of 180 into two and a total of 300 into five? I'm assuming it has one power supply. Anyone got any advanced knowledge of this?

mtymous1
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What does the manual specify?
David Harper wrote:

here's something interesting. I have a Denon 7 channel AVR with a stated power output of 80 wpc 2 channels driven. There are at least two audio publications which put HT receivers on a test bench and measure their power output first into two channels and then into five channels driven simultaneously.One is Home Theater mag.I don't remember the other at the moment. Anyway, my AVR is advertised as having 7 discreet power amplifier output stages. HT mag measured an output of just over 90 wpc into two channels and an output of just over 60wpc into five channels driven at once. Now, since the AVR only has one power supply,how is it possible that it delivers a total of 180 into two and a total of 300 into five? I'm assuming it has one power supply. Anyone got any advanced knowledge of this?

Link to some of your specs:
https://usa.denon.com/us/product/hometheater/receivers/avrx1100w

Click "Specs" then "Specifications"
Note the resistance and look at the number of poweramps listed.

(Assuming it's the AVR-X1100W you've mentioned in your other posts.)

P.S. RTFM will always help rectify any assumptions!
;-)

David Harper
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Joined: Aug 7 2014 - 2:23pm
specs

yes, I did some research on this about a year ago and my understanding was that the design incorporating 7 power amplifiers means that the impedance is not affected by the addition of more speakers. However,the info concerning this was somewhat ambiguous. I even called Denon and spoke to an engineering tech,and he didn't seem to have a definite answer.Or maybe I just didn't understand his explanation. He told me that the receiver has a potential total power output of (get this), over a thousand watts on an instantaneouse basis. In fact, you can find this in the specs somewhere.

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