I know you want to stay with those two brands but you can get a JBL PB1200.1 which is a 1 channle amp that has 2 hook ups meaning you can run more then one sub. it runs at 1ohm 2ohm or 4 ohms. You can find it on www.ikesound.com or www.sounddomain.com and i think its only $275. If its not an option forget i responded.

98.5 Black SVT with 34k miles Build #5683 Born on 4\15\1998 WR Headers GMK CAI Blaupunkt system fiberglass tweeter pods L.E.D. tail lights in the works