Forgot to mention something about these...
...they kick butt!!
The mids and highs, through the EMIM's and EMIT's sound a lot like the Heil AMT's, but even more open and airy, if that's possible. Bass goes very very low, but is not unnatural or heavy. That Watkins woofer is a serious damn woofer.
Only drawback is these suck power in a big way. Infinity does not give sensitivity specs, but I'd guess 82db/1W/1M tops, maybe lower. I also suspect that these are NOT the speakers to use to raise the roof with high SPL's, as the EMIM's were already blown and I'd bet that it was a case of someone trying to rock out, and that isn't what these were meant for. The EMIM's, and to a lesser extent, the EMIT's, are unobtanium, and I'd be scared of smoking 'em. Low sensitivity and low power handling (or unobtanium drivers) can be a bad combo for the uninhibited volume hand...
But if you don't get stupid with volume levels, these suckers sing. Got to be among the top three speakers I've ever heard.