I won't try to argue that the Accuphase didn't sound bad at the show, and maybe Accuphase isn't the sound profile you like, but I bought a pair of A300s 6 months ago after an in home demo with my Rockport Cygnus speakers. My amp ownership journey has been Krell KSA150 to Naim DR300 NAP to Parasound JC1+ to Luxman M900u to ARC 160Ms to Gryphon Antilleon EVO(Home trial of the Westminster REIs) to the A300s. Resolution with the A300s is still there but it's not in your face. I have evolved to a place where I don't want to listen to resolution without musical engagement. I can't easily afford amps that do both extreme resolution and extreme musicality/engagement, as that's where I have found the highest price is paid, but the A300 are as much of that sound as I can afford. I can turn my system up high and not have fatigue. Shure, like Victor S. said in his Stereophile review you can find amps that can do this or that better, but the A300s make you want to listen to "just one more song". Farnsworth Audio provided the home demo of the A300s. Shipping is expensive but there is no substitute for trying components in your own room. I also used to think I could read reviews and put together a winning system. I learned the expensive way that rooms and the rest of the components have a huge effect on the sound. So an amp may be perfect for me but it might be sub-optimal in your system. Try everything you can in your own system/room. Good luck.
Finally heard Accuphase
I heard it at T.H.E. Show last weekend.
I was pretty shocked at how bad they were. Of course there are many variables at a show, but they were in more than one room. The sound was so wishy-washy and vague and uninvolving I couldn't get past it.
And I was hearing stacks of like $50k ,75k worth. A $3k Sugden sounds about the same, if memory serves. Or even the $8k Yamaha. More or less. But to spend that money on these amps makes no sense. Just build your own tube amp for $1500.
Whats going on with this brand?
To be fair, I also heard a $300k system that sounded more or less like a good PA system at a small concert venue that costs like, IDK $10k or something. This stuff is making no sense anymore.