I have a Pioneer DEH1100 that powers my door speakers. The pre-outs are hooked up to a Memphis PR500 that drives a Type R 12.
On songs with a lot of bass, the head unit will sometimes clip the front speakers, but ONLY of the sub is playing. If I cut all power to the amp, the clipping stops. If I disconnect the sub from the amp (but leave the amp powered up), the clipping stops. If I disconnect the RCA's and leave everything else hooked up/on, the clipping stops.
The sub never clips as far as I can hear.
Any idea what my problem might be?