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B&C 21 SW 152

B&C 21 SW 152

B&C 21SW152 - 21" 2000W 8 Ohm Loudspeaker

More Information

  • 4000 W continuous program power capacity
  • 153 mm (6 in) split winding copper voice coil
  • 30 - 1000 Hz response
  • 96 dB sensitivity
  • 60 mm peak-to-peak excursion before damage
  • Neodymium magnet allows a very high force factor and linear excursion
  • Double silicone spider with optimized compliance
  • Ventilated voice coil gap for reduced power compression
  • Aluminium demodulating ring for very low distortion

Technical Specification

Specifications:

  • Nominal diameter 530 mm (21.0 in)
  • Nominal impedance 8 ohms
  • Nominal power handling 2000 W
  • Continuous power handling 4000 W
  • Sensitivity (1W/1m) 96.0 dB
  • Frequency range 30 - 1000 Hz
  • Voice coil diameter 153 mm (6.0 in)
  • Winding material Copper
  • Former material Glass Fibre
  • Winding depth 30 mm (1.18 in)
  • Magnetic gap depth 12 mm (0.5 in)

Design:

  • Surround shape Triple Roll
  • Cone shape Radial
  • Magnet material Neodymium Inside Slug
  • Spider Double Silicone
  • Pole design T-Pole
  • Woofer cone treatment TWP Waterproof Both Sides
  • Recommended enclosure 190.0 dm3 (6.71 ft3)
  • Recommended tuning 33 Hz

Parameters:

Fs 32 Hz

Re: 3.3 ohms

Qes: 0.31

Qms: 7.0

Qts: 0.3

Reference Efficiency: 2.2%

BL: 32.5

Le: 1.5mH

Vas: 200 litres

200.0 dm3 (7.0 ft3)

Sd 1680.0 cm2 (260.4 in2)

Xmax 15.0 mm

Xvar 16.0 mm

Mms 460 g

Mounting And Shipping Info:

  • Overall diameter 547 mm (21.5 in)
  • Bolt circle diameter 527 mm (20.7 in)
  • Baffle cutout diameter 508.0 mm (20.0 in)
  • Depth 261 mm (10.3 in)
  • Flange and gasket thickness 16 mm (0.63 in)
  • Air volume occupied by driver 16.0 dm3 (0.56 ft3)
  • Net weight 18.5 kg (40.7 lb)
  • Shipping weight 20.9 kg (46.0 lb)
  • Shipping box 590x590x300 mm (23.2x23.2x11.8 in)
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