Alpine W10S4 BassLine Series 10" 4-ohm subwoofer

Product info: 10" 4-ohm subwoofer polypropylene and mica cone with poly-foam surround stamped steel frame power handling: 50-250 watts RMS peak power: 750 watts sensitivity: 86.6 dB frequency response: 24-200 Hz top-mount depth: 5-1/16" sealed box volume: 0.83 cu. ft. ported box volume: 1.51 cu. ft. grille not included warranty: 1 year Alpine W10S4 owner's manual One 10" Subwoofer Adhesive backed foam gasket Application Guide (English/ French) On-line product registration information (English/ French/ Spanish) Warranty information (English/ French) Important Notice! (English/ French) Features and Specs Size 10-inch Impedance (Ohms) 4 Cone Material Polypropylene and Mica Surround Material Poly-Foam Basket Material Steel Grille None included Free-Air No Dual Voice Coil No Sensitivity 86.6 dB at 1 watt Frequency Response 24 - 200 Hz Max RMS Power Handling 250 Peak Power Handling (Watts) 750 Top Mount Depth (inches) 5 1/16 Bottom Mount Depth (inches) N/A Cutout Diameter or Length (inches) 8 15/16 Frame Width 10.674 Frame Length 10.674 Vas (liters) 34.7 Fs (Hz) 32 Qts 0.44 Xmax (millimeters) 10 Parts Warranty 1 Year Labor Warranty 1 Year Box Requirements Ideal Sealed Box Volume (cubic feet) 0.83 Minimum Sealed Box Volume (cubic feet) 0.65 Maximum Sealed Box Volume (cubic feet) 1 Ideal Ported Box Volume (cubic feet) 1.33 Minimum Ported Box Volume (cubic feet) 0.82 Maximum Ported Box Volume (cubic feet) 1.57 Port diameter (inches) N/A Port length (inches) N/A