Alpine PWE-S8-WRA 8-inch Compact Powered Subwoofer System for 2011-2018 JK 4-door Jeep Wrangler - Creative Audio
Amazon.com: Audioengine S8 Powered Subwoofer Speaker - 250W 8-inch Home Subwoofer with Built-in Amplifier and Dual Audio Inputs for Home Speaker System (Black) : Electronics