Class A amplifier choice, need suggestions

Zaik correct: the PS Audio is not biased class A at all; its digital PWM output is, if anything, biased toward class C (which is actually not biased at all, but at cutoff).
In the class A catagory - I love my Accuphase; my Ayre amp isn't half bad either.

I love Levinson stuff, but recently demoed and bought harmonic precision amps from star sound tech. These are 110 wpc into 8 ohms and over 97% efficient. Almost no heat. Unbelievable sound and incredibly dynamic. I am driving revel studios with these which I previously drove with 250 wpc levinson amps. I thought they couldn't be as robust as the MLs and when I first got got them thought they were muddy slugs. However after about 300 hour burn in it was a revelation. These things have opened up so much it is hard to describe. They get better on each listen,truly warm and dynamic. I really thought I was listening to tube amps. Someone who is respected in the business ought to evaluate these amps. I have heard and used a lot but these are remarkable.

Love my Plinius SA100 MKIII
magic midrange, smooth highs, articulate bass

I LOVE MY THRESHOLD SA6E MONOBLOCKS.125/WATTS OF PURE CLASS A SONIC BLISS.

The Plinius SA-102, 125 watts pure class A. Read my review and you will look no further.