need amplification help for sonus faber amati

Thank you Johnnyb53. There is a lot of good sens in your answer. I will be mooving in some month and will pay attention to have a good listening room.
So far they are standing in a big room and each of the speakers does not have the same distance to the walls on the side. I guess this does not help.
I have been reading the Michael Fremer review, but as you mentioned, I did not know on what amp he did realy like them.
In Europe I found announcements on resonably priced CJ Premier 12 and I wondered If they would still be considered as a having good bass extention and control. I also have been offered to by a ARC VT200 stereo. What is a better choise.
Last thing: how does the preamp influence the soundstage.

For information: I have Cardas golden reference cables (thanks to Microstrip!), a Cyrus 8x CD player with the external power supply.
I mostly listen to classical music , contemporary music, jazz and improvised music, sometimes a nice pop recording or some so called worldmusic.

I would go with a european amp... since you're in Europe!,
KR Enterprise, Nagra,EAR, Goldmund, FM acoustic... you name it! then, since y4're french: Jadis!!!
Ciao
E

You might consider the Gryphon Diablo integrated amp. There are two used ones now on Audiogon below your top price, and both have the right voltage for use in France. You may also be able to buy a used one within the European Common Market (Gryphon is designed and manufactured in Denmark). While the Amatis have a nominal impedance of 4 ohms, they dip down to 2.6 ohms, so you want an amplifier that is stable down to 2 ohms and that has enough power to drive the Amatis. I had a pair for seven years, and tried a number of amplifier=preamplifier combinations, both tubed and solid state. I didn't actually try the Gryphon with the Amatis, but have heard them in other systems. In my system, the best solid state amplifier that I used was the Accupahse A-50V, and the best tubed was the VAC Phi Beta integrated.

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