I have a pair of the TB-1s and auditioned them against PSB Stratus Minis and something from JM Lab. Those speakers created what I now know as "coloration". The TBs seem to play everything as it was recorded/maastered. A caveat though, they play bad music badly. What I like is the bass extension from such a tiny speaker. They are imported by bryston so if you own one of their amps you should check these out.
The Professional Monitor Company
Okay, I can't be the only person who owns something from PMC. As the name implies, they make professional monitors for the recording and movie industry, as well as speakers for consumers. I own a pair of FB-1's for my audio system, and I have a LB-1 center channel for my home theater. They are the most neutral speakers I've listened to. They do absolutely nothing to the sound. Bass is tight and real, mids are crystal clear, and highs are not harsh. Turn up the volume and they just get louder. I've been contemplating trading up to one of their bigger monitors. Anybody out there care to give a testimonial? Thanks.