DD Audio Basskit PSW212-D4

DDRL-PSW12-D4: Speaker size: (in) 12 Watts RMS: 400 Watts peak: 800 Impedance: D4 VCD: (in) 2.5 Piston diameter: (in) 10 FS: (Hz) 37 Qms: 5.835 Qes: 0.845 Qts: 0.738 Vas: (liters) 30.23 dBSPL: 87 Xmech: (mm) 29 Xmax: (mm) 13 Frame OD: (in) 12.126 Frame OD w/Gasket: (in) 11.17 Mounting diameter: (in) 11.02 Mounting depth: (in) 6.53 Motor diameter: (in) 6.14 Motor depth: (in) 2.59 Magnet weight: (Oz) 100 Woofer displacement: (CuFt) 0.07 Ported enclosure: (CuFt) 1.75-2.75 Shipping weight: (lbs) 19. 4-AI212SLOT: Ported enclosure for 2x12″ subwoofer Net volume: 2x40 liters. Port area: 350 cm2 Port height: 350mm Port width: 100mm Tuning frequency: 38 Hz Diameter of speaker hole: 285mm Measurements ( W x H x D ): 930 x 380 x 400.