I just got this receiver and im pretty sure i need an amp to power 2 passive 10"-300 watt subs that are cut into the wall behind my couch. they are run to the entertainment center with 14awg speaker wire, and the sub outputs on the receiver are RCA. im assuming i need an amp. the manual doesnt say anything about whether they are pre-amp or speaker outputs. anyone know what type of amp i can get if needed and where to get it?










