2x B&C 21SW152-8 21" Neodymium Subwoofer 8-Ohm DJ Live Sound 4000W Bass Sub

2x B&C 21SW152-8 21" Neodymium Subwoofer 8-Ohm DJ Live Sound 4000W Bass Sub

B and C

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2x B&C 21sw152-8 T.C.
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B&C 21SW152 21" Professional Neodymium Subwoofer Speaker 2000W 8-Ohm

Overview

The B&C 21SW152 is an advanced, lightweight subwoofer driver featuring 2,000 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.

Features:

  • 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 spiderProduct Specifications

  • Nominal Diameter 21" Power Handling (RMS) 2,000 Watts

  • Power Handling (max) 4000 Watts Impedance 8 ohms

  • Frequency Response 30 to 1,000 Hz Sensitivity 96 dB 1W/1m

  • Voice Coil Diameter 6"

Thiele-Small Parameters

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

 

Materials of Construction

Cone Material
  • Coated Paper
Surround Material
  • Cloth
Voice Coil Wire Material
  • Copper
Voice Coil Former 
  • Fiberglass
Basket / Frame Material
  • Cast Aluminum
Magnet Material
  • Neodymium

 

 Mounting Information

Overall Outside Diameter
  • 21.5"
Baffle Cutout Diameter
  • 20"
Depth
  • 10.3"
Bolt Circle Diameter
  • 20.7"
# Mounting Holes
  • 8
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