JL Audio ACS110lg-tw1

ACS110LG-TW1 Amplified Subwoofer System with Single 10TW1-0.25 Subwoofer Driver, Built-In 400W Class D Amplifier, Black Carpet - Sealed Enclosure Be sure to call for best pricing in a package
$799.95

Harnessing the performance and insanely small box requirements of the TW1 subwoofer driver, this subwoofer system is designed to deliver amazing sub-bass from an enclosure that is only 5 inches (127 mm) deep