I disagree that they are "not that expansive." I find the soundstage to be very wide and holographic at times.
I agree though that in standard form the image is much too low. I have overcome this by raising them 8 inches on ballistic rubber blocks. This places the CDT unit at my sitting ear level, eliminating the vertical dispersion deficiency.
http://www.blackironrubber.com/products/ballistic-control-rubber/