Robbo,

I'll bear than in mind. It's not a main requirement though, more a nice element to have covered, like everything else in the spectrum. The PMC IB2's offer a HUGE amount of low end pressure with controlled detail. I really can't imagine any sane person would require more, especially in a modest room.

However I'm not so sure how easily any sub might integrate into a stereo system anyway. I always had trouble with my previous REL in that respect. Anyway, that's now been sold off earlier today, to a couple of reggae nutters. No more slow blurred bass for me, or having to sod about with placement and settings. I do think servo assisted subwoofers are the way forward, to those who really need it. I wouldn't think about a normal one again, unless it was a monster studio PMC transmission line.