21 SW 152---21SW152 LF Drivers - B&C Speakers

specifications

More Info 21 SW 152—21SW152 LF Drivers – B&C Speakers
Nominal Diameter 530 mm (21.0 in)
Nominal Impedance 8 Ω
Minimum Impedance 7.0 Ω
Nominal Power Handling 2000 W
Continuous Power Handling 4000 W
Sensitivity 96.0 dB
Frequency Range 30 – 1000 Hz
Voice Coil Diameter 153 mm (6.0 in)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 32.0 mm (1.26 in)
Magnetic Gap Depth 12.0 mm (0.5 in)
Flux Density 1.2 T
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 190.0 dm3 (6.71 ft3)
Recommended Tuning 33 Hz
Resonance Frequency 32 Hz
Re 6.0 Ω
Qes 0.38
Qms 6.4
Qts 0.36
Vas 200.0 dm3 (7.06 ft3)
Sd 1680.0 cm2 (260.4 in2)
η₀ 1.9 %
Xmax ± 15.0 mm
Xvar ± 16.0 mm
Mms 450.0 g
Bl 39.0 Txm
Le 2.2 mH
EBP 84 Hz
Overall Diameter 547 mm (21.54 in)
Bolt Circle Diameter 527 mm (20.75 in)
Baffle Cutout Diameter 508.0 mm (20.0 in)
Depth 261 mm (10.28 in)
Flange and Gasket Thickness 16 mm (0.63 in)
Air Volume Occupied by Driver 16.0 dm3 (0.57 ft3)
Net Weight 18.5 kg (40.79 lb)
Shipping Units 1
Shipping Weight 20.8 kg (45.86 lb)
Shipping Box 570x570x320 mm (22.44×22.44×12.60 in)
Recone kit RCK21SW1528

*All specifications are subject to change without notice.