Speaker Size (In): 10 Watts RMS: 1200 Impedance: D2 VCD (In): 3 Piston Diameter (MM): 203.2 Frequency Response (Hz): 35 – 2k Fs (Hz): 42 Qms: 4.684 Qes: 0.462 Qts: 0.421 Vas (Liters): 9.331 BL (TM): 30 Xmech (MM): 30 Xmax (MM): 12 Frame OD w/Gasket (In): 10.625 Mounting Diameter (In): 9.375 Mounting Diameter (MM): 238 Mounting Depth (In): 4.8125 Mounting Depth (MM): 122