Wilson Sasha W/P amplifier pairing


I acquired a pair of Wilson Sasha W/P speakers this year. They’re Series 1 Sasha’s. Now trying to find great mono blocks to power them. My other system has Harbeth Speakers and a Pass Labs amp, I love the combo and can listen for hours without fatigue. I’d really prefer something warm and non fatiguing for the Sasha’s. 
 

Amps I’ve tried so far:

Pass Labs X350 - too bright and forward, etched vocals, not a lot of sparkle but plenty of authority

Pass Labs INT-30A - much better all around than the X350 but still too bright and forward. Not nearly enough power for Sasha. End result is too cold and thin

Bob Latino ST-120 - this is a $1200 kit tube amp I built. 60WPC. This amp was surprisingly kind of magical with Sasha.  Never fatiguing and full bodied. Unfortunately it went up in smoke because I can’t solder.

 

Mono blocks I’m considering:

Audio Research Ref 160M

Lamm 1.2 Reference

Pass Labs XA100.8

 

Preamp is a PrimaLuna EVO 400. Rega RP3 with Exact cart. Denafrips Ares II DAC streaming Roon via MicroRendu. Any advice welcome. 

audio_bidder

OP,

 

I brought home an Audio Research Reference 160 to compare to my Pass x350s. After seconds I realized I would not have to put the Pass back in for comparison. I immediately told my dealer… sold. There was no comparison.

 

I have had the privilege of having both a pair of Ref160m and a Ref 160s for the last year. Wow, either are incredible amps. Detailed, musical, and natural with power. Never going anywhere else.

Agreed. Peter McGrath recommends this on ARC (and other) amps. I did it with my Ref160Ms and Sashas and now with my Alexia2s. It works.