Just wondering why my 3 60w rms satellites and 2 100w rms towers w/ 100w powered sub (polk system) kill my Alpine SPR-17S with a Crunch PZi 175.4 and 2 alpine 12" type r's (4 ohm coils) with a Crunch PZi 325.2 (i know thats a crap amp for those subs i ordered a Crunch GP2500D and figured id wire it for 1 ohm). Now this is in both quality and volume, mainly on the woofer side, the subs will kill the home system once i get a the better amp. -Thanks in advance