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Category
B & C
B & C 21DS115 - 21" 1700W 8 Ohm
With Faston Spade Terminals
 
Product Code: BAC21DS115 | Brand: B & C

   
£459.53
£382.94 ex VAT
Qty:

2-3 £454.93 ea.4-7 £450.34 ea.8+ £441.15 ea.
0% finance Click for details
10% Deposit: £45.95
12 Monthly payments @ £34.46
 
FREE DELIVERY for mainland UK

B & C 21DS115 - 21" 1700W 8 Ohm

This next evolution subwoofer uses a new, longer, four layer aluminum voice coil. The result is more energy in the gap, higher sensitivity, lower distortion and better overall performance. The 21DS115 features a 36 mm long, 4.5 inch diameter (116mm) Copper Clad Aluminum Wire voice coil. With a 1700watt AES power rating, 99 dB sensitivity, and over 16.5mm of Xvar, this high energy subwoofer is a significant step forward from similar models in the B&C range, even approaching the performance of our 6” voice coil alternatives.


  • 3400 W continuous program power capacity
  • 116 mm (4.5 in) four layer aluminum voice coil
  • 30 - 1000 Hz response
  • 99 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
Specifications:

  • Nominal diameter 530 mm (21.0 in)
  • Nominal impedance 8 ohms
  • Minimum impedance 6.5 ohms
  • Nominal power handling 1700 W
  • Continuous power handling 3400 W
  • Sensitivity (1W/1m) 99.0 dB
  • Frequency range 30 - 1000 Hz
  • Voice coil diameter 116 mm (4.5 in)
  • Winding material Aluminium
  • Former material Glass Fibre
  • Winding depth 36 mm (1.42 in)
  • Magnetic gap depth 14 mm (0.55 in)
  • Flux density 0.8 T


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 130.0 dm3 (4.59 ft3)
  • Recommended tuning 40 Hz


Parameters:

  • Resonance 30 Hz
  • Re 5.1 ohms
  • Qes 0.24
  • Qms 10.0
  • Qts 0.23
  • Vas 269.0 dm3 (9.5 ft3)
  • Sd 1680.0 cm2 (260.4 in2)
  • Reference efficiency 3.0 %
  • Xmax 15.0 mm
  • Xvar 16.5 mm
  • Mms 407 g
  • Bl 40.8 Txm
  • Le 4.6 mH
  • EBP 125 Hz


Mounting And Shipping Info:

  • Overall diameter 547 mm (21.54 in)
  • Bolt circle diameter 527 mm (20.7 in)
  • Baffle cutout diameter 508.0 mm (20.0 in)
  • Depth 255 mm (10.04 in)
  • Flange and gasket thickness 13 mm (0.51 in)
  • Air volume occupied by driver 15.0 dm3 (0.53 ft3)
  • Net weight 14.8 kg (32.63 lb)
  • Shipping weight 17.2 kg (37.92 lb)
  • Shipping box 590x590x300 mm (23.1x23.1x11.8 in)
  • Recone Kit RCK21DS1158
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