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
OP, I currently have SF Amati Tradition that replaced the SF Serafinos.
For about 10 month I was driving Serafinos with latest Gryphon Diablo 300 integrated. Great integrated, dynamics, micro details, timber. But it requires careful cables match - especially power cables and speaker cables. When I had Gryphon I had top of the line  Shunyata Sigma speaker cables and the sound was if I can compare it like a very strong coffee, - too much meet on the bones overshadowed micro nuances and speed. It was mistake to have Sigma speaker and power cables with Gryphon and Sonus Faber. I had to sell Gryphon for the reason  that in case of any issues you can ship it only by freight - since it comes in the wooden box that has strange assembly - no problem for others but it was a bothering potential issue for me. Currently have pass int-250 that drives SF Amati Traditions and I love it. Why? Pas int-250 is very good, and I was able to find a great matching speaker cables  for it - Audience Front row, so synergy is very important. The Accuphase on 12/01 will start production of their reference integrated E-800. This will be very interesting integrated to hear. But unfortunately for many if us the Accuphase pricing is insane. In Japan it will cost around 10K here the msrp will 21k.  
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If it is not too late you should consider Raven Audio.  They have a family of integrated tube amps that produce the sound you are looking for.  I had the Sonus Faber Amati Tradition Homage speakers tied to a Raven Reflection MK2 tube amp.  The sound is warm, crystal clear and like you were at a right in front of a classical concert.  Call Dave Thomson at Raven.  He also has some of the best tubes in the world.  
Many folks told me not to use tube amps with Sonus Faber Serafinos as the speakers are already warm sounding. Also I was wondering if anyone have tried vintage Marantz or Pioneer receivers with these speakers. I heard Marantz 2270 at my friends place with regular polk speakers and it can distroy many best in class amp/preamp combos. But not sure if they will have enough power to drive Serafinos?