Lanzar Distinct Series 10" Inch Car Subwoofer | Free Air DVC Pro Audio Car Sub |10 -In. 240 Watt (DCTOA10D) 10 INCH SUBWOOFER: Lab Tested Pro Audio Car Woofer Performance - IB Woofer Speaker Sub Sound Drive Unit HIGH-POWER CAR SUB: Power Output: 240 Watt MAX (120 Watt RMS) - 4 Ohm Impedance DVC VOICE COILS: Dual Voice Coil Car Speaker Design - Barium Ferrite Magnet - Stamped Steel Basket INFINITE BAFFLE AUDIO: - Open Free Air Car & Truck Speaker Enclosure Box Panel Mounting Compatibility SIZE / MOUNTING: Car Sub Size: 10 In. - Total Size (Diameter x Depth): 10.16" x 5.03" -Inches - Mounting Size (Diameter x Depth): 8.86" x 4.61" -Inches