I recently painted my living room. I disconnected my speakers(Klipsch RF3) and my subwoofer(Infinity BU120) to move them to another room so I didn't have to cover so much stuff up with tarps. When disconnecting my sub, all i did was unplug the power cord and the RCA's that led into the sub. I didn't disconnect anything from the receiver(Kenwood VR-309). When I moved everything back, and connected my speakers, my sub seemed not to be giving me anything for sound, though the power light is on. Everything else seems to be working fine. I don't understand why it would have stopped working. Please help.