Pass INT 60 vs. Accuphase E-650 for music

I have used the INT60 for loudseaker voicing at Aluminous Audio. The INT60 is one of the best sounding amplifiers we have ever had the pleasure of testing. It did everything so well. An overall description of the amps sound is "open." The music sounded unrestricted and just flowed out with a lot of space between instruments and voices. Highs were silky, and the bass was rock solid.

I have not tested Accuphase on the same system but I have read that its sound is on par with the Pass Labs gear. 

Best wishes with your choice, either should be a winner for your system.

I can only refer to my experience auditioning the int 60. I’ve not heard the Accuphase E650. I would agree 100% with your evaluation of the int 60. Outstanding amp. Beautiful sounding in every respect. I wasn’t going to audition it at all but thought I’d wonder "what if" if I didn’t at least listen to it for a few minutes. I’m so glad I did.

It sounded superb on it’s own but then we plugged it into an MSB ADC V streamer/DAC....Oh my!! Incredible richness and really well balanced frequency spectrum. Nice tight bass, rich, open, and smooth mids, very nicely rolled top end, with great sound staging and dynamics...what’s not to like? And that was all before connecting it to the MSB. I was, needless to say, very surprised by the int 60. Having said all that I’ve read nothing but positive comments regarding the entire Accuphase line.

Thanks for all input.
I think also, I would enjoy either one.
The Int 60 is a Wolf in Sheep's Clothing, the Accu is a real fine Japanese instrument.
Is the Pass 'dead' quiet in operation, no hum or any hiss trough the speakers when no music I playing?