I have an ALpine MRV-1507 pushing a Fosgate RFR3112. My problem is is that it doesnt sound like I thought it would. The specs on the amp say that it pushes out 600W RMS, and the speaker can handle 1000W RMS, 2000 Watts max. But when I crank it up, it does that 'clapping' sound in my car, but not...