MemphisBred

For each sub, wire one voice coil's positive to the other voice coil's negative. Wire the two remaining positives to the positive of the master amp. Wire the two remaining negatives to the positive of the slave amp. Wire the speaker terminal grounds of the master to the slave amp. Run your RCA cable to the master amp. Run your bass knob to the master amp. Run a short RCA from the master amp to the slave amp. Flip the Master amp to Master and the Slave amp to Slave. Tune the Master amp.