12 shallow-mount subwoofer with dual 4-ohm voice coils. Ribbed Santoprene Surround Resists Heat And Degrading. SoloKon Cone With 360-Degree Back Bracing.UniPlate Solid Pole Piece & Backplate For Excellent Heat Dissipation. Easily Mounts Under or Behind a Seat. Uses a Sealed or Ported Enclosure. Square Sub Design Moves 20% More Air Than Round Subwoofers. 600 watts RMS (300 watts per voice coil). Sealed box volume: 0.55-1.25 Cu. Ported box volume: 1.75-2.25 Cu. Any product you return must be in the same complete condition you received it and in the original packaging. Drive-In Autosound, a Colorado company since 1962, specializes in car audio, window tint, clear bra, remote start, truck lifts, custom wheels and a whole lot more! Offering top brands like Pioneer, Kenwood, Rockford Fosgate, JL Audio, JBL, Pro Comp. Rigid, Smittybilt, ARB, Westin and hundreds more! Drive-In Autosound is the experts in mobile electronics and aftermarket accessories for your car, truck or jeep. While we have grown to be an industry leader, we are still a family-owned business focused on quality, service and providing every customer with the best possible experience. WE ARE AUTHORIZED TO SELL ONLINE.