Pioneer TS-D10LS4 - 10" - 1300w Max Power, Single 4 Ohms Voice Coil, Armid Fiber IMPP cone, Rubber Surround - Subwoofer 10˝ Aramid Fiber Interlaced Injection Molded Polypropylene (IMPP) cone construction Butyl rubber surround for strength and linearity during high excursion Shallow basket, small enclosure design for sound optimization and installation flexibility D Subwoofer, FORCEFUL, DEEP, DEFINED. Too much isn’t enough, embrace the bass. The D subwoofer is a culmination of Pioneer technologies that produce thick, deep, powerful and accurate bass that makes listening to your favorite music energetic, fun and engaging. ARAMID FIBER INTERLACED INJECTION MOLDED POLYPROPYLENE (IMPP) Polypropylene (PP) is a tough thermoplastic resin that is an ideal material for a subwoofer cone - with low mass and high damping, PP cones offer good sensitivity and low distortion. However, polypropylene cones lack the rigidity and strength required for high output and extreme low bass. To resolve this, Pioneer engineers used advanced Computer-Aided Manufacturing to develop a process to blend aramid fibers into the polypropylene resin during the injection molding process. The resulting Aramid Fiber Interlaced IMPP subwoofer cone is incredibly strong and low mass with high rigidity and superior strength to produce deep, powerful and undistorted bass. KEY FEATURES System Type Component Subwoofer Sensitivity (1W/1m) 76dB Frequency Range 20 Hz to 3.4 kHz CTA-2031 Compliant Yes Warranty 1 Year Continuous Power handling (RMS) - Watts 350 Watts Maximum Peak Power Handling - Watts 1300 Watts Nominal Impedance - OHM 4 Speaker Grill Sold separately (UD-10GL)