15-SA10D4 - Memphis 10" 250W RMS Dual 4-Ohm Shallow Subwoofer 15-SA10D4 - Memphis 10" 250W RMS Dual 4-Ohm Shallow Subwoofer RMS / Peak (w): 250 / 500 Butyl rubber surround Dual 4 voice coils Mounting Depth (in): 3.35