I own the model 6's and have been quite happy with them. They do need power though - they are not incredibly efficient. One of the best things about them though that most people overlook is the 3 way design. Most comparable loudspeakers (smaller towers) are two way. The sound is accurate, non-fatiguing, and with great imaging. Many people say they are not warm, but I can tell you they are definitely not bright either; I think neutral is the word. My favorite aspect of their sound is that they are "tight" (my words) - unlike some other speakers which sound great with acoustical music but take on a boxier sound when played loudly, the Aerials just don't lose their cool. They are solid. I have not heard them with BAT equipment; only Rowland and Levinson (both sounded great). As for the first poster's comments about them being "anemic," I disagree. I have them in a large (12 X 14 X 8) room more than 3 feet from the walls. The bass is flat down to 40 Hz and then some (measured). Remember, with a 3 way design that 7 inch woofer is just concentrating on the bass, unlike two ways where a 5 1/2 or 6 1/2 is also doubling for midrange.