>>The vp150 maybe another story though. I can hear a slight resonance on some voices and it can be almost painfully bright.
A few people who reported that kind of sound from a VP150 found that the problem was largely eliminated by making sure that the sound was not being affected by the edge of the shelf/tv/whatever it is sitting on.
The best seems to be a shelf or stand that gets it a bit away from the TV and gives it a sharp-edged shelf (rather than the curved edge of many TVs) so you can cantilever the front of the VP150 out over the edge of the shelf a bit without worrying about it falling.
EDIT -- if you haven't read through this article from Alan, give it a quick scan :
http://www.axiomaudio.com/tips_center_channel_sound.html
