P7300 vs A70. your thoughts

[ctzzzz]

Hello everybody

I own an A70 but considering switching to AB class P7300.
My setup consists in Wilson Audio Sophia 3, A70, C2420, DP560 (soon to be DP750). Transparent Cable Reference range.
At this moment I wouldn't say that A70 is not already great, but I wonder if P7300 could be an even better choice.
The known data are:
1. I have a pretty big listening room, 73 sq meters (about 700 sq feet).Maybe more power would be better suited to the larger room (even I usually don't turn up the volume too much)
2. I like the warmth of the Class A, but also the precision of the AB counterpart.
3. I mainly like to play jazz/fusion stuff, but I also like classical/large orchestra music. Not too keen on mainly vocals music.

If anyone of you owned or listened these two amps for longer periods, I would gladly wait for your opinion(s).