Subwoofer 12 inch JBL STAGE 122D subwoofer JBL Stage 122D

specs : Size 12 -inch 12" dual 4-ohm voice coil component subwoofer Cone Material Polypropylene Surround Material Rubber Ideal Sealed Box Volume (cubic feet) 1.4 Ideal Ported Box Volume (cubic feet) 1.6 Port diameter (inches) 2.95 Port length (inches) 4 Free-Air Yes Dual Voice Coil Yes Sensitivity 91 dB at 2.83 volts Frequency Response 34 - 200 Hz Max RMS Power Handling 250 Peak Power Handling (Watts) 1000 Top Mount Depth (inches) 6 Bottom Mount Depth (inches) N/A Cutout Diameter or Length (inches) 10 15/16 Vas (liters) 67.4 Fs (Hz) 32 Qts 0.6 Xmax (millimeters) 12