BC Speakers Speaker 21SW150 User Manual

Specification  
Nominal Diameter  
530 (21) mm (in)  
4 Ohm  
Nominal Impedance (1)  
Minimum Impedence  
Nominal Power Handling (2)  
Continuous Power Handling (3)  
Sensitivity (1W/1m) (4)  
Frequency Range  
4 Ohm  
1500 W  
3000 W  
95 dB  
30 - 1000 Hz  
150 (6) mm (in)  
Copper  
Voice Coil Diameter  
Winding Material  
Former Material  
Winding Depth  
Magnetic Gap Depth  
Flux Density  
Glass Fibre  
30 (1.18) mm (in)  
12 (1/2) mm (in)  
1.2 T  
Thiele & Small Parameters  
Fs  
Re  
Qes  
Qms  
Qts  
29 Hz  
3.3 Ohm  
0.27  
8.1  
0.26  
Vas  
Sd  
254 (8.9) dm3 (ft3)  
1680 (260.4) cm2 (in2)  
2 %  
Eta Zero  
Xmax  
Xvar  
Mms  
Bl  
+/- 15 mm  
+/- 16 mm  
494 g  
32.6 Txm  
Le  
1.3 mH  
Mounting and Shipping Info  
Subwoofer  
3000 W continuous program power capacity  
150 mm (6 in) copper voice coil  
30 – 1000 Hz response  
21SW150  
Overall Diameter  
Bolt Circle Diameter  
Baffle Cutout Diameter  
Depth  
Flange and Gasket Thickness  
Net Weight  
547 mm (21.5 in)  
527 mm (20.7 in)  
508 mm (20 in)  
250 mm (8.2 in)  
15.5 mm (5/8 in)  
18 kg (40 lb)  
95 dB sensitivity  
Ventilated voice coil and aluminium demodulating ring  
60 mm peak-to-peak excursion before damage  
Double silicone spider with optimized compliance  
Shipping Weight  
Shipping Box  
20.4 kg (44.9 lb)  
590x590x300 mm  
(23.2x23.2x11.8 in)  
1
For different impedances, please ask.  
2
2 hours test made with continuous pink noise signal (6 dB crest factor).  
Power calculated on rated minimum impedance.  
Power on Continuous Program is defined as 3 dB greater than the  
Nominal rating.  
3
4
Applied RMS Voltage is set to 2.83V for 8 ohms or 2.0V for 4 ohms  
Nominal Impedance  
 

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