When I was looking for speakers I actually considered the CBM-170's, but never had a chance to audition them. I'd also recommend the Ascend's CBM-170 in general, not sure for the T-amp in particular though. But the Ascends have amazingly flat response. They don't go too low in the bass, but they should blend pretty well with any good sub. The Axioms don't have as flat a response, and have that typical bump in the low bass that most bookshelves speakers have. Of course, response won't really tell which one you will prefer, or which one will match better with the T-Amp.