I bought a pair in 05 with the initial price of 8000. and 300. shipping. I used to own the Stonehenge 3 in the 70's and yearned for the percussive smack that few high end speakers can produce.
I set them up in my 20x30 listening space, and thinking with ARC, CJ and PAD gear, I would reach Nirvana with better components than the S.A.E. and Soundcraftsman I used with the older Altecs.
This did not happen. The sound was akin to a good P.A. system. I then spoke to the Altec Tech and redesigner of the crossover who suggested I send back the x-overs for tweaks to calm the overactive lower mids.
I instead did the unthinkable, I bought an EQ. This with sitting at the other end of the room (I'm a nearfielder), and turning the speaker upside down with the horn inside the cabinet now made the speaker listenable but after having Acoustat, B+W, Wilson, Totem, Magneplanar, Vandersteen and Revel in my room, the joy of refinement in loudspeaker techmoligy (Ali G!) was simply not there.
However, if you want the excitment of the moviehouse, these things are absolutely splendid! They are, afterall, the "Voice of the Theater". Also, I hosted a Halloween party in a 60x40x15 room and they finally showed me the the stuff that legends are made of. A volume and presence with clarity that only a large horn system can deliver.
So, if your looking for speaker that has a liquid transparency, gobs of inner detail and delicate portrayal of the ambient space, forget about it. They are brutes that require r-o-o-m, an EQ and surprisingly little power.