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JBL Stage 122 1000W 12" Car Audio Subwoofer with NVX Sealed Subwoofer Enclosure 818060014062 | eBay
BOSS Audio Systems CUBE10 10 Inch Car Audio Subwoofer and Amplifier Package – Powered, Built-in Amplifier, Passive Radiator, Remote Subwoofer Control, For Truck, Boxes and Enclosures
Customer Reviews: JBL Stage 810 8" component subwoofer at Crutchfield