Amp / Pre-Amp for Sonus Faber Serafino


What are the recommended amplifiers for Sonus Faber Serafino. I am looking for something extremely warm and my listening is more on the side of classical, jazz, lots of vocal and world music. 

I am currently using Martin Logan speakers with marantz DAC and Primaluna Prologue premium as the amplifier. I am looking for a similar sound with better sound stage and detail, that's the reason i am going with Sonus Faber Serafino. I am inclined towards McIntosh MC352 or Primaluna separates. 

Please suggest. 
ganeshgswamy
CORRECTION

I stated above I never heard a Krell I liked, but it isn't so.  I once was loaned a 50wpc Class A Krell in the early 90's time or so.  The amp was warm sounding with a lot of oomph behind it.  I had forgotten about that amp.  If I had the dough at the time I would have bought it.  I was using a Classe' amp at the time.  Sorry for the confusion.
"I would like to get the best out of SF Serafino for the music i listen to..."

In that case, you may want to try D'Agastino Momentum M400 Monoblock amplifiers. They not only sound excellent but will also add a lot of "sparkle" to your listening room. I've heard them paired with the SF Aida speakers and the sound was truly exceptional. I think they were paired with Audio Research Reference6 preamplifier but I'm not sure.
Good luck with your search.    
In that case, you may want to try D’Agastino Momentum M400 Monoblock amplifiers
True they would be nice also, but the price for the OP is way too much compared to say the Gryphon 120 or 300, and I’d say they would be warmer sounding as well which he wants..

https://forum.audiogon.com/discussions/i-listened-to-the-gryphon-diablo-today-what-an-experience
Take a day, take a trip, take some time, and listen to what both of them will do on the Serafinos. The Sound Environment in Omaha sell both Gryphon and McIntosh, as well as Sonus faber.

I am a sucker for meters and always lusted after McIntosh. After what I heard, The Gryphon gets my vote; no hesitation at all. I got over meters real quick.

Just sayin'...
I haven’t heard the Gryphon 300 but based on the reviews and owners’ input it is supposed to be an excellent integrated amplifier and most likely better than the McIntosh integrated amplifiers out there. The high end T+A integrateds also seem to be very well liked as well. I agree the OP’s speakers do deserve something really good.