21SW152-8 B AND C 21" 4000W Professional Neodymium Subwoofer 8 Ohm NEW

BRAND NEW21SW152-8 B AND C 21" 4000W Professional Neodymium Subwoofer 8 OhmThe B&C 21SW152 is an advanced, lightweight subwoofer driver featuring 4,000 watts RMS power handling, a 1.18" long/6.0" diameter copper voice coil with very high thermal capability, and a ventilated neodymium magnet assembly that provides low power compression. An aluminum demodulation ring fitted to the 21SW152's pole piece reduces distortion. Lightweight but powerful FEA-optimized neodymium magnet Extremely high BL factor and Xmax for outstanding LF output 15 mm Xmax, 60 mm peak-to-peak excursion before damage 6.0" split winding copper voice coil on fiberglass former Ventilated voice coil gap reduces power compression Aluminum demodulation ring on pole piece reduces distortion Double silicone spider Nominal Diameter 21" Power Handling (RMS) 2,000 Watts Power Handling (max) 4,000 Watts Impedance 8 ohms Frequency Response 30 to 1,000 Hz Sensitivity 96 dB 1W/1m Voice Coil Diameter 6" Resonant Frequency (Fs) 32 Hz DC Resistance (Re) 3 ohms Voice Coil Inductance (Le) 1.5 mH Mechanical Q (Qms) 7 Electromagnetic Q (Qes) 0.31 Total Q (Qts) 0.3 Compliance Equivalent Volume (Vas) 7 ft.³ BL Product (BL) 32.5 Tm Diaphragm Mass Inc. Airload (Mms) 460g Maximum Linear Excursion (Xmax) 15 mm Surface Area of Cone (Sd) 1680 cm² Cone Material Coated Paper Surround Material Cloth Voice Coil Wire Material Copper Voice Coil Former Fiberglass Basket / Frame Material Cast Aluminum Magnet Material Neodymium Overall Outside Diameter 21.5" Baffle Cutout Diameter 20" Depth 10.3" Bolt Circle Diameter 20.7" # Mounting Holes 8 FREE SHIPPING