BC Speakers Speaker 12 NW 76 User Manual

Specification  
Nominal Diameter  
320 (12) mm (in)  
8 Ohm  
Nominal Impedance (1)  
Minimum Impedence  
Nominal Power Handling (2)  
Continuous Power Handling (3)  
Sensitivity (1W/1m) (4)  
Frequency Range  
6.9 Ohm  
500 W  
1000 W  
98.5 dB  
40 -2000 Hz  
76 (3) mm (in)  
Copper  
Voice Coil Diameter  
Winding Material  
Former Material  
Winding Depth  
Magnetic Gap Depth  
Flux Density  
Glass Fibre  
19 (3/4) mm (in)  
11 (7/16) mm (in)  
1.3 T  
Thiele & Small Parameters  
Fs  
Re  
Qes  
Qms  
Qts  
40 Hz  
5.3 Ohm  
0.17  
3.7  
0.16  
Vas  
Sd  
76 (2.7) dm3 (ft3)  
522 (80.9) cm2 (in2)  
2.8 %  
Eta Zero  
Xmax  
Xvar  
Mms  
Bl  
+/- 8 mm  
+/- 10 mm  
77 g  
25.5 Txm  
Le  
1.25 mH  
Mounting and Shipping Info  
Woofer  
1000 W continuous program power capacity  
76 mm (3 in) copper voice coil  
40 – 2000 Hz response  
12NW76  
Overall Diameter  
Bolt Circle Diameter  
Baffle Cutout Diameter  
Depth  
315 mm (12.4 in)  
298 mm (11.7 in)  
283 mm (11.1 in)  
147 mm (5.8 in)  
14 mm (0.55 in)  
4.9 kg (10.8 lb)  
Flange and Gasket Thickness  
Net Weight  
98.5 dB sensitivity  
Neodymium ring magnet assembly  
Aluminium demodulating ring allows a very low distortion figure  
Ventilated voice coil gap for reduced power compression  
Shipping Weight  
Shipping Box  
5.6 kg (12.3 lb)  
340x340x170 mm  
(13.4x13.4x6.7 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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