I have a Marantz sr7005 receiver which has two sub inputs. My front speakers are polk LSI 25's and each has it's own sub. I have a Polk PSW650 sub. I have hooked up the 650 to a sub in and have hooked up the 2 LSI 25's to the second sub in (with a 3 way plug). I used Audyssey to set up my system. Does it see the three subs and does it send any bass to the two LSI's subs or (since I set my crossover to 90) does everything under 90 go to all three subs or my 650?