Best amp for natural timbre of unamplified acoustic instruments & vocals w/ Revel F32?

So your speakers can sound hard, thin and sterile, and you are looking for an amplifier to help fix that problem. Right?

What about looking for speakers that sound better to you? Just a thought.

I have been using an McIntosh MC402 with mine for years now and have been very pleased. I currently use a Audio Research REF5se and Cardas Golden Reference IC's and Cardas Quadlink bi-wire speaker cable. I had been using a AR LS26 and Harmonic Tech Fantasy speaker and that seemed to accentuate the highs as a little too forward and fatiguing especially on digital. The Quadlink definitely tamed the highs and brought the mids out into the room, however I did lose bass depth but gained control. With the REF5se it seemed to balance out and the bass has returned. My goal is to buy some Cardas Golden Cross once my new cabinet arrive next month.

Mac 492 is a great choice.  Better yet, sell the speakers based on your post. 

I agree with the comments of John and Bill. If you find your speakers to have the intrinsic sonic signature you described (hard, thin ànd sterile) why keep them? Or to put it another way what are their attributes that would persuade you to keep them?
Charles,