I'll also agree with 3 M22's. That's what i would have if i could, but had to settle for an M2 center due to space limitations.

I'll also second Alan's comment on the M22 vs VP150 for music. I switched a VP150 for an M2 and when I did my back to back comparisons I noticed a better blend and overall presence with the M22's. I'll assume that M22 could only be better than an M2.

For movies however I also did note that the M2 was more intelligible than the VP150, especially in my off-axis seating position. I have not noticed the M2 straining to keep up with the M22 but I have a small HT room and don't need to crank to 0dB to get big sound. -15 to 20 dB on my receiver is usually 'very loud' in my HT. YMMV.

Cheers,

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1