Bazooka BTA10100 BT Series 10-Inch 100-Watt Amplified Tube Subwoofer 10 inch

MPN: BTA10100. 10, 100W amp subwoof As all-in-one solutions go, you simply can't beat the A100 Amplified Bass Tubes by Bazooka. Since the amplifier has a built in crossover to remove the high frequencies the woofer cannot play from the signal, you get exactly what you need in the A100's-- crisp, clean bass and nothing more.

eBay