Originally Posted by elee532
Any idea what the limitation is?
I have no real knowledge but if I was to guess, I'd say it was a combination with DSP paths and software, something like the network audio software player is only connected to the avr with two channels.
Anyways I'm just theorising wildly at this point.
Originally Posted by Glock3540
bat pig, You are one of my A/V heros! Always stating facts. As I personally found out on 3 different Denon receivers (AVR-4802, AVR-4810 and my current AVR-4520), sometimes the internal amplifier is not powerful enough. When trying to get those "last 10dB" and the Denon's internal amps start clipping, you Hear that to make it any louder (and remain listenable), you need external help! Thank You for your invaluable advice over the years. You have highly influenced several purchases and have not steered me wrong yet.
Speaker sensitivity is measured with 1khz tone outputs, as the frequency of the sound that is reproduced changes so would the needed power output change. I wonder how loud a 40hz tone would be with one watt of power ?
And that fact alone pretty much invalidates the entire rating for all practical purposes.
Batpig certainly isn't wrong, but he isn't correct either, and this is pretty much why discussions such as these never really go anywhere good.
I bought an emotiva xpa5 while I had my former pioneer elite, cause with my new speakers it started sounding compressed during hectic scenes with lots of explosions at around mv -24.
I did the math then, and power REALLY shouldn't have been a problem (my entire 5 speaker system shouldn't need more than 150 watts at desired levels put together)
But testing out the xpa with that was night and day, I still have my xpa 5 with the denon cause it does sound better with it than without to my own subjective experience and testing, nowhere near the difference as with the pioneer which started sounding like it engaged DRC as things got interesting, but it does eliminate any need or desire for engaging dialog enhancer. A feature I found myself reaching for throughout my week of testing without the emo.
Would it spur me to buy an emo as the pioneer did. No.
Is the difference enough for me to keep the xpa5. Yes.