Upgrading form Pass integrated amplifier to a better one


Hello,

Currently I have a PASS INT-250 integrated amplifier . The Pass INT-250 is a very good integrated (in my system it was overall better than Plinius Hiato, Gamut D150se, Mark Levinson 535, Vitus RI-100,  Accuphase E-470 and some others) but I can't get rid of the feeling that I miss some explosiveness (drum kicks for example) and micro details.

I know that its not the speakers. The new Sonus faber tradition I have are much more open, dynamic and airy than previous Guarneri Evos, Elipasas SE and Amati Anniversarious I used to own. And before buying them I auditioned the Serafinos with Audio Research separates and it was the amazing combo. But I really prefer not to go the separates road ( ICs, power cords and space contribute to financial constrains also) and even so I like the combo of Pass and Serafinos overall but from time to time looking for some better integrated on the market.

Currently I presented with a good opportunity to buy latest Gryphon Diablo 300 integrated or latest just released Accuphase E-650.  No possiblilty to demo them, so I am asking here on the forum if anybody can comment if Gryphon Diablo 300 or Accuphase E-650 will be better integrated than Pass INT250 overall and especially in terms of dynamics, micro details and harmonics.

Any advise and opinion would be very appreciated.

My system: Esoteric K-05x, Pass INT-250, Sonus Faber Serafinos, all cabling are the Shunyata Sigmas.

Room is 12" wide by 17" long. Listen mostly acoustic jazz and chamber classical on low to moderate levels.


Thank you.


denon1
denon1, I envy you, that amp should be a beast with finesse. Yes, please tell us your impressions but after at least 100 more hours of burning in. I have no idea how well your cables will work with the Gryphon. How long do your cables have to be ? Interconnects, speaker and power cords. I am asking to figure out how expensive the replacement might be even if you have no intention of doing it right away. At this level you usually try to match very precisely, this doesn't mean that only top of the line would do, in fact, I don't think so.
Ayre. They are my brand of SS electronics if I could afford anything. I can't though. :)

Best,

E
Diablo may sound technical, kind of sterile in some systems.  Just pay attention to these attributes.. ... 
What about the Boulder 865. It’s a great integrat at an excellent price. It’s dead quiet and is very revealing. I’ll write more in a bit, but have to run an errand.