need amplification help for sonus faber amati

Daniel, as to what is out there, try:
* yr macintosh as Johnny recommends above;
* a used (it's expensive new)YBA amp & pre if possible
* a used class A Accuphase amp
* if still unsatisfied, try different pre's with your amp -- ss rather than tube.

The CJ 12s should outperform the AR200 -- but don't know about the bass performance...
Lastly, the pre affects sound-stage by introducing -or not- phase anomalies in the amplified signal. However, correct speaker placement is more important. Regards

Thank you all so far. This is great help, but I still would like some more information.
(I definately will try to improve the speaker placement.)
In the above recomandations I find some amps that I don't realy like for the reason of personal tast. The Jadis is to colored "tube" for me, the Gryphon and YBA have a little electronic taste to my ears, Nagra is not open enough and FM to slow. I guess I'm a difficult case.
The old KR enterprise VT8000 are suposed to be great. I never had a chance to hear them. Does anybody know if their more recent models are as good? the don't show up in the reviews? They use this strange tube called "Krozilla"!(it seems imposible to find a KR VT8000)
I also never realy had a chance to listen to a good Acuphase or VAC. Can somebody discribe them a little?
Does everybody agree with Gregm "The CJ 12s should outperform the AR200". This would be nice since they are cheaper.
thank you all very much,
Daniel

Dacapobone, as the Amati appear to belong to the type of speakers that are best driven with a modicum of stout control, you may also consider some higher end class D amplifiers. Am particularly fond and familiar with the Jeff Rowland 312. I use them to drive a pair of Vienna Mahlers with great success, which are also somewhat difficult to drive with many amps because of their reasonably wild impedance curves. I have written a discussion of the 312 on The Absolute Sound 188, as a sidebar in my review of the Vienna Mahler speakers.
In my experience, some switching class D amps can sound as refined as amps of any other class. . . and they have the great advantage of generating almost no heat. . . and of driving difficult loads with great ease.

BTW, does 'bone' stand for posaune?

Saluti, Guido

former Amati Homage owner, I have tried many amps on them and I agreed with Denmark Sonus Faber importer the best sound was achieved with BAT VK-75SE/150SE. not Rowland, Pass, ARC, Sonic Frontiers, McCormack, Accuphase, and a few others I can't recall now.

I guess Guidocorona knows who I am, the mask has fallen. Yes I am the german trombone (posaune) player that lives in Paris you are propably thinking of. (I will send you an email over audiogon to find out who you are and how did you guess.This is not so interesting for the others here.)

About the Rowland D class, I think they are very good but I have the feeling the D class amps, including Rowland, give what I would discribe a liquide sound instead of an airy one. I prefaire more air between the instruments. longer listening seems more tyering to me with the Ds

Concerning the BATs, I have never heard any. What I read is that they are indeed a very good choise for the Amatis, but in a big room I would need the VK-150SEs. Is this true? Those are too expensive for me.
The big room also gives me a little doubt about the souperiority of the CJ premier 12s over the ARC VT200?
I will see if I find a chance to listen to some BATs.