Pioneer TS-A300D4 A-Series Subwoofer with Dual 4ohm Voice Coils (12)

1,500W max; 500W RMS; 12 glass-fiber & mica-interlaced Injection Molded Polypropylene (IMPP) cone construction; Butyl rubber surround & polycotton dual-cotton spider for strength & linearity during high excursion; Dual 4ohm voice coils; Oversized 60oz double-stacked magnet & vented pole yoke for increased power handling; Freq resp: 20Hz to 2.3kHz; Sensitivity: 77dB; Recommended enclosure size range: .85 cu ft-2 cu ft ; Mounting depth: 5.8; Includes mounting screws & brackets; Each;