ALPINE X-W10D4 10" 900w RMS Car Subwoofer Sub+ROCKMAT+Bluetooth Headphones

Package Includes: (1) Alpine X-W10D4 10" 900 Watt RMS Car Audio Subwoofer DVC Dual-4ohm X-Series Sub (1) Rockville Rockmat RM36-B 36 Sq Ft Butyl Rubber Sound Dampening/Deadening Car Kit (1) Rockville BTH7 Sleek Bluetooth Headphones /Perfect Sound/Swivel/Leather Padding Description of X-W10D4: OVERVIEW The New X-Series subwoofers were developed from a sound philosophy we call Alpine ID – a focus on highly accurate components built for superior imaging. A triple stacked magnet surrounds an extended voice coil which allows a very long excursion resulting in huge air movement. A specialized CRC pole with integrated cooling fins and an aluminum shorting cap reduce the lag of coil’s alternating movement while also providing cooling within the motor. The cone structure is suspended by two spiders and our patented H.A.M.R. surround. The stability of the dual-spider along with the even unfolding of the multi-roll surround create incredibly linea