In our apartment, apart from having the sub on a Subdude, I'm also using an antimode 8033c (applied before Audyssey) to counter peaks in low frequency response. I've recently noticed, comparing my usual setup to the M22s in "source direct" mode, that the latter can give the impression of having more bass -- just because the bass with sub is much smoother and cleaner. This is mostly with music, of course, and I'm not sure my neighbours benefit as much as I do from equalising the sub, but it might be something to consider.
