Did you see the Tone Audio review of the Elipsa SE? These are superb speakers and truly gorgeous in the violin red. Underpowered they wont sound quite as dynamic and as I mentioned, the bass won't be as crisp. They really need 100 wpc or more to sound their best.
The speakers are a great place to start. Then you can make a plan and upgrade your electronics as you go. At this level a truly great preamp is as or more important than the amp. In my system I hear more of an impact when changing preamps then amps. But a synergy with both is important. I have my Ref 110 paired with a Ref 5se and Ref Phono 2se.
I have not heard the current PS Audio stuff. If I did not have ARC gear, I would probably have Pass. The problem is the preamp. The Ref 5se is a truly great preamp. I have not heard any thing near the price, especially used that sounds as good.
Curious you mention Leonard Cohen. I just picked up the 45 rpm box set of Famous Blue Raincoat. Jennifer Warnes sings Leonard Cohen.

