NAKAMICHI 12" DVC Subwoofer Peak Power 6300W RMS 900W (NSW-P1209D4)

SPECIFICATIONS Model No.: NSW-P1209D4 Nominal Diameter: 12" (312mm) Mounting Depth: 5.98" (152mm) N-Power: 900 watts Peak Power: 6300 watts Nominal Impedance: 4Ω+4Ω Frequency Response: 37Hz-2.6kHz Sensitivity (SPL/1W/1m): 86±3dB Free Air Resonance (Fo): 46Hz Suspension Compliance (Cms): 94.196uM/N Moving Mass (Mms): 126.636g Mechanical “Q” (Qms): 4.514 Electrical “Q” (Qes): 0.465 Total Speaker “Q” (Qts): 0.421 Equivalent Volume (Vas): 34.888 DC Resistance (Re): 4Ω+4Ω Effective Piston Area (Sd): 52.1mm² Force Factor (BL): 11.917T·m Reference Efficiency (No): 0.710% Voice Coil (V.C.): Φ75.5mm, ASV Magnet Mass: 112.86oz (3200g) Net Mass (1pc): Approx. 8.3kg