Nakamichi NSW-Z1209D4 12" High Performance DVC Subwoofer (900W RMS 6000W Peak)

The Nakamichi NSW-Z1209D4 is a high-performance 12-inch passive dual voice coil (DVC) car subwoofer built for deep, heavy bass handling. Specifications: Nominal Dlameter: 12 (305mm} Mounting Depth: 6 (152mm) N Power: 900 watts rms Peak Power: 6000 watts Nominal Impedane: 4Ω+4Ω Frequency Response: 40Hz-500Hz Sensiftvity (SPL/TW/1m): 86±3dB Free Air Resonance (Foj: 40.694H Suspension Compliance (Cms): 76.61TUM/N Moving Mass (Mms): 199.6629 Mechanical "Q" (Qms): 3.512 Eectrical "Q" [Ges): 0.840 Total Speaker "Q" (Qts!): 0.678 Equivalent Volume (Vas): 28.373L DC Resistance (Re): 3.40+3.40 Effective Piston Ared (Sd): 51.093mm² Force Factor (BLI): 10.164Txm Referonce Efficiency (NO): 0.220% Voice Coil (V.C): 75.5mm. BASY Magnet Mass: 118.5oz (3359g) Subwoofer Mass (pc): Approx 8.6kg What's in the BOX 1* Subwoofer 1* User manual 8* 5-30mm Screws 1* Mounting template & 1* Warranty Card