Eminence"s Eminator 2010 10"" subwoofer speaker is a high-impact, high-value driver for premium mobile audio systems, High SPL output capability, Copper voice coil on polyimide former for high power handling, Treated paper cone and foam half-roll surround, Good efficiency and extended Xmax provide more bass, Ferrite magnet, vented pole piece, stamped steel frame, Power handling: 200 watts RMS/800 watts peak, VCdia: 2"", Le: 0, 62 mH, Impedance: 4 ohms, Re: 3, 47 ohms, Frequency range: 45-500 Hz, Magnet weight: 34 oz, Fs: 41 Hz, Sensitivity: 90, 3 dB 1W/1m, Vas: 2, 17 cu, ft, Qms: 9, 58, Qes: 0, 62, Qts: 0, 59, Xmax: 5 mm, Dimensions: Overall Diameter: 10, 11"", Cutout Diameter: 9, 13"", Depth: 4, 5"", SKU: TBALL8810