B AND C 21SW152-4

21-in 4000 Watt High Power Low Distortion Woofer 4 ohms
SKU: 21SW152-4
Availability: 9 in stock
Manufacturer: B AND C

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 & linear excursion
Double silicone spider w/optimized compliance
Ventilated voice coil gap for reduced power compression
Aluminium demodulating ring for very low distortion
Nominal Diameter
4 ohm
Nominal Impedance
4.2 ohm
Minimum Impedance
4000 W
Continuous Power Handling
2000 W
Nominal Power Handling (AES)
96 dB
Sensitivity (1W/1m)
30 - 1000 Hz
Frequency Range
153 mm (6 in)
Voice Coil Diameter
Copper
Winding Material
Glass Fibre
Former Material
Neodymium Ring
Magnet Material
30 mm (1.18 in)
Winding Depth
12 mm (0.5 in)
Magnetic Gap Depth
1.2 T
Flux Density
Design
Triple Roll
Surround Shape
Radial
Cone Shape
Neodymium Ring
Magnet Type
Double Silicone
Spider
T-Pole
Pole Design
190 dm3 (6.71 ft3)
Recommended enclosure volume
33 Hz
Recommended tuning frequency
Parameters
32 Hz
Fs
3.4 ohm
Re
0.31
Qes
7
Qms
0.3
Qts
200 dm3 (7.00 ft3)
Vas
1680 cm2 (260.40 in2)
Sd
2.2 %
รง0
+/- 15 mm
Xmax
+/- 16 mm
Xvar
460 g
Mms
32.5 Txm
Bl
1.5 mH
Le
103 Hz
EBP
Mounting & Shipping info
547 mm (21.5 in)
Overall Diameter
527 mm (20.7 in)
Bolt Circle Diameter
508 mm (20 in)
Baffle Cutout Diameter
261 mm (10.3 in)
Depth
0.63 mm (16 in)
Flange & Gasket Thickness
16 dm3 (0.56 ft3)
Air volume occupied by driver
18.5 kg (40.7 lb)
Net Weight
20.9 kg (46 lb)
Shipping Weight
590x590x300 mm (23.2x23.2x11.8 in)
Shipping Box
Service kit..RCK21SW152