4 D1 - Sundown Audio 18 2500. Watt RMS Dual 1-Ohm Nightshade V. 4 D1 2500W RMS Dual 1-Ohm Subwoofer. DC Resistance (Re): 1.3. Resonance Frequency (Fs): 30.89 Hz.
Equivalent Volume (Vas): 97.43 L. Electrical Q Factor (Qes): 0.421.Mechanical Q Factor (Qms): 4.5169. Total Q Factor (Qts): 0.3853. Voice Coil Inductance (Le): 1.049 mH.
Force Factor (BL): 17.36 NA. Air Load (Mms): 502.85 g. Suspension Compliance (Cms): 52.76 m/N.Sensitivity: 90.08 dB 1w / 1m. Outside Diameter: 18.42 in. Cutout Diameter: 16.69 in. Recommended Port Area: 112 sq. In order to maintain an inventory of 100%, Brand New, A-Stock, untouched products, all sales are final.
We ask that you please be sure you are ordering the correct product. The item "SUNDOWN AUDIO NS-18 V. 4 D1 18 NIGHTSHADE 2500W RMS DUAL 1-OHM SUBWOOFER NEW" is in sale since Thursday, March 15, 2018. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "woofersetc_outlet" and is located in Los Angeles, California.This item can be shipped worldwide.