Active 12 Inch 600 Watt Car Audio Subwoofer Tube Speaker and Amp Cable Package 847861053765 | eBay
Amazon.com: Pyle 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs PLBX8A : Electronics