Unsound I have definitely thought about 7.2's and spent a lot of time with 3.7'es a couple of years ago...almost bought them.
looking for something a little different and the Andra's have peaked my interest and sound like they might offer a more interesting midrange, smoother highs, and possibly deeper bass when driven with high power SS. I will keep my Thiels however since they have kept me happy for many years.
Thanks Rwwear and rockadanny for your insight!