B&C 21DS115

PA subwoofer

Manufacturer parameters
  • Diameter: 21" (53cm)
  • Power (W): 1700W
  • Impedance (Ohm): 8 Ohm
  • Sensitivity (db/1W): 99
  • Qts: 0,23
  • Price: 500

  • Diaphragm: coated paper
  • Basket:
  • Magnet: neodymium
Measured parameters
  • Fs = 37.2 Hz
  • Re = 5.1 ohms
  • Le = 2905.38 uH
  • Qt = 0.24
  • Qes = 0.26
  • Qms = 4.96
  • Mms = 322.38 grams
  • Cms = 0.000057 m/N
  • Vas = 221.82 liters
  • Sd= 1669.14 cm^2
  • Bl = 38.73 Tm
  • ETA = 4.29 %
  • Lp(2.83V/1m) = 100.39dB
  • EBP=143 Hz (bassreflex)


measured by: CrashPC