Speaker for my Mark Levinson 331

Wilson, B&W, Aerial & Verity are all sonic matches for the ML gear. Keep us posted.

Thank you all!
Is there anybody using the ML331 to drive a pair of Sinus Faber Cremona M ?

Not a ML331, but perhaps close enough - Before I sold my ML334, I used it to drive a pair of Sonus Faber Cremona Auditor M's. It was a very good pairing, made even better when I added a REL sub.

Aerial 10t's are a good match.

I suggest you consider the Revel Ultima 2 line. They are quite a bargain used. Your amp may be more suited to the Studio 2, but without knowing your room size, volume, music taste and so on I can't be sure.

Levinson and Revel and both part of Harmon, so I'm almost sure the Ultima 2's were voiced using ML electronics. My ML433 and Studio 2's are a truly great combo. For once in my life I have no upgrade interest, at least not in amp or speaker.