Do you think the two of these will mix well for music and movies? (I only have a 2-channel setup right now). For most music I am unfortunately going to have to use the high-level inputs, and from what the guy at SVS told me, 80Hz and below automatically be filtered out by the sub. This is not adjustable or defeatable at all using the high-level inputs. So my questions are: -Will the LSi15s (8" built-in woofer) still do justice to the music, or might I have just as well have gone with some smaller LSi9s (6.5" driver for bass) and been just as well off? -Will the SVS 20-39 PC-Plus extend strongly and cleanly all the way up to 80Hz? Or am I going to have somewhat of a gap in my sound between 60 and 80Hz or so because of that high pass filter? -Will the power that was being sent to my LSi15s for bass just be absorbed and grounded out, or will it be somehow redirected and used as extra energy to power the frequencies above 80Hz? Maybe a bit too late to be asking these questions though since I just ordered a couple days ago. I'm just getting nervous. I thought the 25-31 would have been a better match for my speakers, especially since I do quite a bit more music listening, but the guy at SVS told me he still strongly recommended the 20-39 even for music, especially since the sub will be in a very large open area... which he said the "plus" model would also help with as well. Thoughts?