hey all i got a Polk 8 inch 100w sub with my RM705 speakers and i bought a Monster Power 10 inch 125w sub that was on sell at CC. (the Monster dose sound better)I have them hooked together with the y spliter and are almost in the middle of the room left and right side next to walls. the Polk has a Left and right inputs a PHASE SWICTH ( 0 to 180) a LOW PASS( 0 to 180) toggel and a volume switch. the Monster has 1 input , a NORMAL and REVERSE switch , a THX and Variable switch and a volume switch. now can someone explain all this to me and the best way to set them up and will they sound good together or should i use just 1 sub? please help my wife is tired of seeing all the speakers sitting out and me fiddling with them sayings im almost done hunny!!