I live in Sacramento and have a pair of M4 TS speakers that I would be happy to play for anyone interested in hearing them. I have a Don Sachs 6SN7-based tube preamp and a First Watt F5 and a McCormack DNA .05 Deluxe amp powering them. They are by far the most enjoyable speakers I have had in my system in 45 years of having high-performance audio gear. I swapped them recently for a pair of a Revel M22 monitors that I have in my bedroom system, which are similarly priced to the M4's. The comparison made clear my preference for the M4's, which have a vastly more open and realistic soundstage.
Open baffle speakers perform in a way that I don't think conventional box speakers can, however, I would not argue with anyone that feels differently. If you haven't heard OB speakers, I strongly urge you do do so. Mine sound just fine within 24" of the baffle wall.