Rockford Fosgate R2-2X10 Dual 10" Sealed Subwoofer Enclosure Gravity 800W RMS at 1 Ohm:

800W RMS at 1 Ohm: Supports high-output compatible subwoofer configurations at 14

The KS-DR1004D uses a compact chassis

The specified cutout diameter is 5-1/2 inches and mounting depth is 1-7/8 inches

For a complete rig

Rockford Fosgate R2-2X10 Dual 10" Sealed Subwoofer Enclosure Gravity 800W RMS at 1 Ohm:The Rockford Fosgate R2 2X10 is a dual 10 inch loaded subwoofer enclosure for adding dedicated low frequency output to a car audio system. It combines two Prime R2 dual voice coil subwoofers in a factory built sealed enclosure, eliminating the need to select separate drivers and build a box. This makes it a practical option for listeners who want a ready to wire bass upgrade. The enclosure is internally wired as a 2 ohm mono load and is rated for 500