Bill, it would be best to talk to Roger. Douglas Schroeder emailed me offline and I filled him in, and I will respond to you here as well, but my one concern is what Roger may have done to the speakers since I heard them. The cost has gone up significantly.
I listened to them twice. Imaging was very good, even sitting off center. Roger was using an RM-200, pot in the box, and a Sony CD player in his system. Zip cord for speaker cables, his own ICs, and RCA to XLR adapters on the amps. The sound stage was big, music very life like, vocals exceptional, bass a bit weak, but very acceptable. Second time around the bass issue was corrected and the speakers sounded very much like the Sound Labs I have heard. At this session Kavi Alexander of Water Lily Acoustics was also present and as a Beveridge owner himself was very impressed.
The foot print of these speakers was extremely small and would be easy to place. Roger was using what appeared to be an external bass amp, but I believe he was working on integrating the amp into the speaker base. Not sure how this ended design wise.