I once owned the M4 and have auditioned many models over the years. I was once invited to a dealer only audition of one of their prototypes that never made it to market. I liked the M4 and used them for a few years and these performed amazingly well for sub $1K speakers. When I went to replace them I auditioned the Eyris DC 3 which was pretty good and in the running, and the TD12 (out of my budget at the time, but sounded excellent), but ended up with the VSA-4JR which I loved from the moment I heard it. The set-up on the TD-12 was not optimal from a placement or electronics standpoint so I really do wonder what they would be like set-up correctly.
I hope someday to hear some of their offerings up in the prestige line.
I hope someday to hear some of their offerings up in the prestige line.