Well, you know how boring audio forums would be if EVERYONE says "you can't hear any difference"?
How boring it would be if everyone only talks about rational stuff?
I mean, okay, so we can't hear any difference (AVR5308 vs AVP-A1). Heck, they even look identical. We got that out of the way.
I mean most of these electronics have the same features and a lot of them also look very similar to one another. So what's there to talk about?
But seriously though, wouldn't you expect the AVP-A1HDCI to have better measured specs than the AVR-5308CI? Seriously.
AVR-5308:
FR: 20 Hz - 20 kHz +/- 0.04dB
THD: 0.004%
Crosstalk: -92 dB
SNR -109.9 dB
AVP-A1HDCI:
FR: 20 Hz - 20 kHz +/- 0.40 dB
THD: 0.03%
Crosstalk: -88dB
SNR: -109.6 dB
Of course, I'm only asking those who care because obviously most people don't care.