It's OT, but I don't see what being able to hear up to 18K has to do with Alnico or not. Extended top end hearing may help you evaluate super tweeters, but has little to do with good perception and learning what to listen for. Yes, I prefer Alnico drivers, but I don't think I could ever hear above 18K, even in my youth. I don't think the differences are up that high, they are more in the midrange.

As for kicking the multicells out of the living room - kick my way! I sit not more than 10 feet from mine and have no problem. Neither has anyone (audiophile or not) who has visited. Quite the contrary. Sure, I'd love a bigger room, but that's more to do with room acoustics than the multicells.