Amazon.com: Definitive Technology SuperCube 4000 Compact 8" Powered Subwoofer | Superior Bass, 1200 Watts Power | Fits in Less Than 1 Cubic Foot Space |Includes Rubber & Spiked Feet - Discontinued by Manufacturer : Everything Else
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Subwoofers
5.25" Subwoofer and 2.1 Channel Class-D Amplifier, Cube Enclosure with Grille