Jperry,
I have owned 2 pair of A3s now for almost 10 years and can tell you quite a bit. First, they are superbly balanced IMO, being neither too forward, bright, dark, etc. The extend to 38Hz on paper but don't sound that low, more like 45-50 to me. Their midrange is extremely uncolored, they have superb transient response, and their treble is non fatiguing and extended. Bass is very good but not quite the same caliber as their miss/highs. My only criticism is that compared to my Spendor 1/2Es, frequencies below 100Hz sound a bit thick, and some air is lost. They use a PhaseTech tweeter no longer made and Carbonneau woofers. 90db sensitivity. Mine image great, and they have superb rhythm. They are speakers that always make me smile when I listen to them...I paid $130 for the first pair and $450 for the second because I was going to have pair #2 even if I had to pay a fortune. If you can find a pair, GET them!