It does apply to the M22's as well but I suspect not to the same extent as your on walls(haven't heard the on-walls but the graphs and owner reviews suggest it). The fuller mid/upper bass range(50-100hz) is what I was looking for when I upgraded to my M80's. The bookshelf M22s and my PB13-U sound very good together and nearly the equal of the M60/M80's, IMO, but not quite as good as the real thing, Floorstanders still play that range better, IMO, YMMV etc., etc.
. As Dean has noted, listening distance and room environment play such a huge role that not everyone will have the same response/issues with any speaker.
