The ALS starts shipping in a week or so. Each tower has 12 tweeters plus one super tweeter facing forward. Since the "cabinet" is a triangular aluminum tube, the 22 4" mid bass drivers are facing the wrong way! That's 11 per side on the two backsides of the triangle. Now get this: each little woofer is wound with a high-back-EMF coil which allows each driver to act, not only as a speaker, but as a microphone. So you have 22 microphones per tower listening to the room reflections. This info is kicked back to the amplifier which is forced to self-equalize through its feedback loop so it never sounds like a Bose 901. For more details, if you care, see the Absolute Sound review on line but suffice it to say that the reviewer felt it could be the greatest speaker ever to many listeners. At $17,500 for the four piece system--two towers, one sub and one external sub-amp/crossover, it would really be middle-priced in the high-end world. Feel free to call me for more details: Frank Malitz 847-668-4519.