X-10 V.2 D4 - Sundown Audio 10" 1500W RMS X Rev 2 Series Subwoofer X-10 V.2 D4 - Sundown Audio 10" 1250W RMS X Rev 2 Series Subwoofer Depth: 8.88" Cut-Out: 10.01" Gasket OD: 11.65" 1" = 25.4 mm