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