While balancing channels, I had to lower the M3 centers 6 DB on the HK to have equal sound output as the M22’s. They are positioned horizontal about a quarter inch apart with the tweeters together. I’ll also say that they have a slightly different tone than the 22’s. I initially had the woofers together, but the center channel just seamed to be two ‘wide’ for dialog. Night and day difference (and improvement) with the tweeters together.
The VP150 has the tweeters at the ends, and there are three smaller woofers vrs the two larger woofers running two M3’s.
