This Two Ohm VEGA PRO Shallow 10-inch will play like a true-sized subwoofer while fitting into the smallest of spaces. VEGA PRO SHALLOW * Stamped Steel Slim-Mount Frame with Encapsulated Motor * Vented Pole and Heat-Sink Basket For Superior Cooling * Poly-Cotton Spider with Flat Tinsel Wires * Aluminum Heat Dissipation Dust Cap * Unimount Gasket Surround * Power Handling: 300W / 600W. * Sensitivity (dB @ 1W 1M): 85dB. * Mounting Diameter: 9.1 in./231mm. * Mounting Depth: 3.65 in. (92.8mm). * Sealed Enclosure Volume: 0.4 Cu. Ft./11.3 litres. * Vented Enclosure Volume: 1.0 Cu. Ft./28.3 litres. * Vent Dimensions: 0.67" x 10.5" x 10"/17mm x 267mm x 254mm.