Sonus Faber Extremas ?

For owners or anyone who's heard them, what are some good choices for amplification?

Thanks all
I'm willing to bet one reason for the discontinuation was difficult load.Many Euro hobbyists like low powered tube stuff(great,btw)and that is a NO-NO with the Extremas!Did I say that these speakers are Gorgeous,and Unique looking???
There was a nice,used,pair available about two months ago.In mint condition.I was hoping my friend would pick them up,as he has a wonderful amp,for matching.The Rowland 8T.He passed.His loss!!
I see that you are a great fan of the Extremas and I don't blame you. They look gorgeous and sound equally great when set up properly. While I like the performance of these speakers, the main reason I bought them was for their looks. They certainly make great decorative pieces of art.
I don't want to dominate this thread,but,if anyone "really" wants to hear these wonderful speakers,they MUST have a good "add-on" super tweeter.Like the Townshends,or some of the other offerings on the market(MURATA?).It makes a significant impact on performance.Unless you only care about the looks -:)
I guess I'm in the minority here about the looks. The woodwork was indeed exquisite, but I never liked the big, almost yawning look of the woofer from the front. An amazingly good speaker, though, when properly driven.