CT Sounds
CT Sounds OZONE-10-D2 1600 Watts Car Subwoofer Dual 2 Ohm
Skar Audio
Skar Audio Single 8" 700W Loaded SDR Series Vented Subwoofer Enclosure | SDR-1X8D2
Dual Electronics
Dual Electronics TBX10A 25cm Shallow High Performance Powered Enclosed Subwoofer with Built-In Amplifier & 300 Watts of Peak Power
Audioengine
Audioengine S6 210W Powered Subwoofer - Versatile, Tight, Smooth hi-fi Subwoofer - Built-in Amplifier - Wireless-Ready, Designed for Audio and Home Theater Performance Black