Sonus Faber Cocertino Home. Concertino's were my first "real" speaker. What a sweet sound they made, but no bass. I sold these to get a pair of Paradigm Studio 20s (I think ver 2). The Paradigm's had lots more bass, but boy did I miss the way the Concertino's produced music.
Speakers you regret selling
I was lucky to own Sonus Faber Extrema, Acoustic Energy AE1 Signature, and Dynaudio Confidence 5 in the past. They are rare in used market and can make any owner happy for the rest of his/her life. So I swore to myself I would never sell my Sonus Faber Amati this time though my wife has heard that a million times. What did you regret selling?