Hi Stickman
I own the B version. Never heard the others but what I've experienced and heard from others that have purchased the B and C versions is that the midrange and treble can be overbearing....headache inducing.
If I were to purchase them again, I would sans crossover and look into these instead http://www.fastlaneaudio.com/crossovers.html.
Otherwise, Crites offers a nice speaker at a reasonable price.
In terms of speaker placement, be prepared to experiment. Inches matter. More than any other speaker I've owned
For more info on Cornscalas, look here:
http://www.audiokarma.org/forums/forumdisplay.php?f=131
