What Ian seemed to suggest is that in his measurements my VP150 did not exhibit this behavior. I'm not making it up, which is why I'd like someone to confirm or deny my findings. In my readings about the VP150 I have come across several listeners who complain of the sound being centered around the VP150 and not being well dispersed. I would call it a kind of "megaphoning". I'd be interested for someone to perform the test I did. Maybe the reason Ian didn't duplicate my results is that my processor outputs its test tones in specific frequencies that are highlighting this dispersion problem. Just a thought.