I am also aware that they are working on an AVP replacement Gene. I fully predict it will sound better than the current AVP. It almost has to. I was always
under impressed with the AVP. It was cemented when we had a shootout back in the 2008 era and people picked it 2nd to the last (we had around 5 prepro's set up on that night). The demo was the last one I sold. We often do listening tests side-by-side all at one sitting. The AVP wasn't "bad". But the "holographics" (if I may) were collapsed in comparison to the 2008 designed Marantz AV8003 ($2600 retail). Hence I recommended the Marantz. I always preferred selling the AVP because I made more $'s.
On paper, the AVP should be incredible. But it's obvious that at least one section of the design was less than ideal that brought down the sum of the entire SQ. Putting it another way, if the design does everything right and they pooch it in the volume control section or the excruciating long signal path by using a card based approach or less than ideal signal capacitors or an under whelming control of the jitter, the net result is the Class A output / differential designed won't overcome the short comings. I don't where they didn't get it right and I really don't care. I care about the end result.
At the same token, if the 8801 (on paper) uses an lower caliber DAC that happens to sound better or if they used a better (fill in the blank) design approach on several fronts, the net-net will result in the AV8801 to sound subjectively better as an aggregate. Class A output / differential designed or not.
I have explained to every customer who traded in his AVP that the 8801 should NOT sound better but I conclude they will hear the same thing as others. As I said earlier, I give them the 8801 and ask them to give me back the one that sound worse. I've taken in trade all but one. One guys room sucked and I explained what he needed to do to improve it. He could not hear a difference and didn't want to "lose money that he invested" on the AVP. The other 10 heard what I heard.
People can approach their purchasing decision another way. They can rely on a website like yours who takes measurements. You have convinced yourself that the AVP is superior and people will trust your measurements and opinion. My approach is different. Logic tells me what is better on paper but I refuse to let that get in the way of what sounds better to me. That is why I called the measurements "worthless". I know that they are not "worthless" but certainly the only test that really matter is how it sounds in your system.
The topic reminds me of a conversation with the head speaker designer at Energy speakers. He went over all of the incredible firsts that he used on the Veritas series. He explained the mechanical bracing in the back of the magnet, the low resonate rubber top, the counter wound coil for a more linear response etc. He went on for a solid 1/2 an hour. I was DEEPLY impressed with his design approach so I brought it a pair. In short, I was under whelmed. The speaker worked on paper but not in practice.
SO it really doesn't matter if the 8801 was never meant to be a replacement. It sounds BETTER. Did you ever do a head-to-head sonic comparison? I cannot imagine that you did. I would have to search hard to find someone who likes the AVP better sonically.