PRV Audio 10W650A Alto Series 10" Woofer 325 Watts RMS 8 ohms Pro Audio Speaker 97dB 2.5" VC (Single) Nominal Impedance: 8 Rated Power Handling: 325 Watts Program Power: 650 Watts Sensitivity (1W/1m): 97 dB Resonance Frequency (Fs): 72.31 Hz Frequency Range at -10 dB: 75 - 5,500 Hz Recommended Hi Pass X-Over: 150 Hz (12 dB/Octave) Xmax: 4.50 mm Voice Coil Diameter: 2.5" Magnet Material: Ferrite Frame Material: Stamped Steel Weight: 10.49 Lbs. Mounting Depth: 4.33 (110 mm) Replacement Cone Kit: RK10W650A