The Aerial SW-12 is probably the single piece of equipment that I have been most impressed with -- I have 10ts, cc3, sr3s, a couple of classe amps, a lexicon, a slew of harmonic tech. cables, dedicated lines, and the list goes on...
Some of the things I like about it -- off the top of my head:
+ Exceptional sound quality for both music and HT -- the ability to seemlessly integrate with your system...unbelivable amount of punch, yet extremely clear and realistic...Is able to illustrate the fact that there is a SIGNIFICANT amount of information that the 10Ts are not giving you.
+ Notch Filter EQ to adjust for the room
+ Machined Remote, although the way other remotes can interfere with the unit is quite annoying
+ Superb 30+lb driver (12.5" w/2" of linear movement -- Michael claims this moves about 90% of the air of an 18")
+ Excellent cabinet construction
+ Custom made stand w/spikes
+ XLR capability -- in addition to a bazillion inputs/outputs, adjustable low/high pass filters, etc..
+ A very high quality amp
+ Excellent quality
+ The ability for it to move air like you cannot imagine -- a guest, sitting 15+ feet from the subbwoofer, commented that she felt like she was in a windstorm and that her hair was getting messed up...This was after playing some rather bass heavy material, I must admit. However, my system is relatively flat and you don't see any type of significant pressure change as you go into the very low frequencies -- think Pomp & Pipes. If you play at reference level, as silly as that would be, you might do harm to the structural integrity of your home -- I'm seriously getting worried about my cathedral great room. I'm going to need to build a house with a dedicated room sometime in the near future.
Did I say the sound was stunning??? Again, this was the single biggest thing I ever did to my system...period. Absolutely state-of-the-art -- and absolutely impressive. In this case, I have to admit that I think you get what you pay for -- and for $4.5-$6k that's a lot of performance.
Get one while you can.
Mark C. Davis