Don, welcome. Very thorough "summaries" indeed, but I wouldn't expect anything less from a physicist. Certainly no surprise at your judgment as to the excellence of the M22s, since I'm still thrilled with mine after more than six years. It is a bit curious to read how much of a difference you heard with the M2s, though, which differ mostly in the low bass below about 90Hz and in the ability to play at high levels. I assume that you checked that the M2s were connected in-phase and that all the drivers were in fact operating.
