JBL S2-1224SS 1-12 Loaded Ported Subwoofer Enclosure with JBL STAGE A3001 300 Watt Mono Amplifier - This bundle includes a JBL S2-1224SS Series II 12 Inch Subwoofer & Slipstream Ported Enclosure with SSi Selectable Impedance - 2 or 4 Ohm, a JBL STAGEA3001 Stage Series 250 Watt Car Audio Mono Subwoofer Amplifier, a pry kit, and a JBL coozy.