Hmm, my experience in a good comparison between the M22s and sub to M60'(I have since changed to M80s)was fairly profound. Even with the appropriate crossover setting and as good as they are, I found in a home theater application especially when the volume was cranked up, the M22s strained somewhat at the mid bass levels, something that was eliminated by changing to the M60s with sub(must be those larger woofers in the M60s and 80s).
Perhaps certain programming would make a difference in what you are hearing when making a comparison but, in my opinion and after years of experimentation, having the largest speakers possible in the left/center/right positions just seem to handle everything you throw at it with more ease.
