It seemed to make a slight difference. I was pretty careful to match the levels but the VP100 still sounded better, which surprised me. Very hard to describe -- "more open" is the usual term but no idea how to translate that into something measurable.

BTW, I noticed that a center composed of 2 M2s wired in parallel sounded a bit better than a single M2 in pretty much the same way.

I found there was a huge jump from "no center" to "single M2 center", but much less jump from "single M2 center" to "dual M2" or VP100. Then again, I can also listen happily with M2 mains and a good sub so the combination of room size (13x23) and listening levels are not too demanding.


M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8