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B&C 21 SW 115

B&C 21 SW 115

B&C 21SW115 - 21" 1700W 8 Ohm Loudspeaker

More Information

  • 3400 W continuous program power capacity
  • 116 mm (4.5 in) split winding copper voice coil
  • 33 - 1000 Hz response
  • 97 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 Ω
  • Nominal power handling * 1700 W
  • Continuous power handling * 3400 W
  • Sensitivity (1W/1m) * 97.0 dB
  • Frequency range 33 - 1000 Hz
  • Voice coil diameter 116 mm (4.5 in)
  • Winding material Copper
  • Former material Glass Fibre
  • Winding depth 34 mm (1.34 in)
  • Magnetic gap depth 14 mm (0.55 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 250.0 dm3 (8.83 ft3)
  • Recommended tuning 32 Hz

Parameters

  • Fs 33 Hz
  • Vas 278.0 dm3 (9.7 ft3)
  • Sd 1680.0 cm2 (260.4 in2)
  • Xmax 14.0 mm
  • Xvar 15.0 mm
  • Mms 335 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 250 mm (9.9 in)
  • Flange and gasket thickness 14 mm (0.53 in)
  • Air volume occupied by driver 15.0 dm3 (0.53 ft3)
  • Net weight 14.0 kg (30.8 lb)
  • Shipping units 1
  • Shipping weight 16.4 kg (36.1 lb)
  • Shipping box 590x590x300 mm (23.1x23.1x11.8 in)
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