Dave,
My thoughts are divided as well. Its tough to justify $1800 for a RAAL bookshelf when the NrT towers with a dedicated mid driver are the same price. On the other hand, if the RAAL bookshelf has an improved mid range presence because of the lower XO point over and above the Nrt sierra-1, then it might be a interesting proposition.
I suppose if someone is after the best tweeter (highs) in a bookshelf, it would be tough to beat.
I suggest letting some folks hear the prototype(if possible) and gauage the feedback. I of course would not mind demoing a pair


Had to throw that out!
Just out of pure curiosity while we are on this subject, if there was a possibility to improve upon the Towers (with RAAL) such as better drivers, different cabinet design, etc, what would you do?
Thanks,
Brandon