Brand NEW! Including 90 Days USA Factory Warranty. 12? glass fiber and mica interlaced Injection Molded Polypropylene (IMPP) cone construction Butyl rubber surround and polycotton / cotton dual spider for strength and linearity during high excursion Oversized 60 oz double stacked magnet and vented pole yoke for increased power handling Easily Upgrade to High Performance Pioneer?s A-series sound design purposely matches the subwoofer and full-range loudspeakers to provide seamless and smooth sound characteristics with dynamic, high impact bass that lets you hear and feel the music. Linear, Balanced Motion Linear, balanced motion in both the forward and reverse directions of cone movement is critical to accurate reproduction of recorded sound waves. Careful engineering of the entire motor structure and suspension system (voice coil, magnet, surround and spider) is required maintain a high level of linearity, even during high output / high excursion transients. Component sSubwoofer Sound Pressure Level (Sensitivity) - 77 dB (+- 1.5dB) Frequency Range - 20 Hz to 2.3 kHz Continuous Power Handling (RMS) - 500 Watts Maximum Peak Power Handling - 1500 Watts Nominal Impedance - 4? Dual Voice Coil (DVC) WOOFER Diameter - 12" Cone Material - Glass fiber and mica reinforced Injection Molded Polypropylene (IMPP) Surround Material - Butyl Rubber Basket Material - Stamped Steel Magnet Material - Double stacked ferrite Magnet Weight - 60 oz Mounting Depth - 5.8? - All international buyers are responsible for all tax, duties and/or customs fees.