The Sundown SLD-10 D4 is a shallow-mount 10-inch subwoofer rated 600 W RMS / 1200 W peak on dual 4-ohm voice coils. A black aluminum 2.5-inch voice coil, vented pole and gap, dual-magnet motor, and bolt-through construction target high output in limited depth. Stitched Mini-XL tinsel leads and a custom cone shape support hard use.