I had a similar question earlier regarding the VP150 because my room is not very wide. Nobody said I had to worry, and nobody seemed to take issue with it... so I assumed it was ok.

Here is the thread in question, though it likely won't help:
http://www.axiomaudio.com/boards/ubbthre...2556#Post312556

Thanks
snazzed

M22, VP150, QS8 <--all v2
Sub: Outlaw LFM1-Plus
Denon AVR1910, Sony X900-65"