12" HED Series Single 4 Ohm Car Subwoofer Power Handling: Peak: 300 watts RMS: 150 watts Impedance: Single 4 ohm Composite polypropylene cone design provides the perfect weight to strength ratio & excellent durability Rubber surround allows high amounts of excursion Radial contact convex domes geometrical design minimizes cone flex to reduce distortion Rolled aluminum former for superior thermal capabilities and increased power handling Linear rolled spider provides control and dynamic sound at all volume levels Nickel-Plated pushpin terminals provide low-resistance connection & corrosion resistance Woven tinsel leads sewn directly into spider for greater reliability Single 4 ohm high temperature aluminum voice coil Cross-flow window venting reduces VC temperatures Forged alloy yoke for superior magnetic field retention Deep drawn heavy gauge stamped steel basket Also found as: HED12S4 Sensitivity: 86 dB Mounting Depth: 6" Cutout Diameter: 10-15/16"