Pioneer TS-W312D4 12″ Dual Voice Coil 4 ohm Component Subwoofer

1,600W Max / 500W RMS High Power Handling and High EnduranceDual layer, fiber reinforced elastic polymer surround. Iconic red spider for precise control and for stable and linear excursion. High heat resistance voice coil. Large magnet with high heat dissipation. Deeper and Louder BassHigh rigidity IMPP™ composite seamless cone with honeycomb. Double stacked large magnets and long voice coil with Aluminum bobbin. Heavy and Sturdy StructureNewly optimized steel basket design to decentralize load of heavy motor assembly and to maintain accurate cone motion. Firmly enclosed bottom basket for reliable bass reproduction. GRADEChampion Series Size30 cm (12") Maximum Music Power1600 W RMS500 W Frequency Response20 Hz to 1.6 kHz Sensitivity ( 1W / 1m )92dB ImpedanceDual 4Ω Mounting Depth157 mm Cut-Out Dimensionsø283 mm Resonance Frequency37 Hz Xmax11.3 mm Magnet Weight2,540 g Recommended Enclosure35.4 liters