Pass X-350 with Acoustat 2 + 2

Yep, my good buddy did it last september. Sorry I didn't see your post previously !

He had Krell and Audio research monoblocks with the Acoustas before and the Pass x-350 is the best match he had up until now. Bass response and soundstage are much deeper with silences much darker. At low level, the performance is a premium one. Probably due to the first 100 watts of class A power.

"Probably due to the first 100 watts of class A power." Are you sure of that?

Don't know, not my amp. I can only assess it outperforms ARC classic 150 monoblocks by a lot in the deep bass and soundstage side. Acoustats are heavy drinkers of power and the Pass is a very high current amp, class A must have a part in this !

I don't believe high current requires Class A operation.

Hi Brian, I ran the X 150 and X 600 on Duetta Signatures for some time. I don't think they are worth the price. There are others that have both speakers, but I don't know what amps they are using.

The 350 does run at class A for the first 100 watts. I had another fully class A amp for a time on the Duettas, and that was just great. It filled the stage with beautiful music.