Yeah, but my main speakers go all the way down to 35 Hz (realistically 90 hz before the response drops off like a cliff edge) anyway, so if I cut off the subs at about 90 Hz and twiddle the knobs a bit there won't be much audible cross-over, right?
And yes, in theory, I could add subs for all seven in-wall channels, and the in-ceilign ones. I have predicted next year's latest and greatest will be in-floor speakers, so I could add those in time too....
However, I think four tracking round the room should be enough, seeing as we're supposed to not be able to track the origins of low frequency sounds anyway.
And what is LFE exactly anyway? It doesn't make the floors shake watching San Andreas or the walls shake watching the latest Blow, Sorry Die-Hard... Sounds, sorry, appears would be a better word in the context, like a "whiter than white" thing to me.
My HT room is wired for four subs with in-wall cables already, so that pain is already taken care of. Perhaps I'll play around if / when I finally get four subs and report back.