BC Speakers Portable Speaker 12 MH 32 User Manual

Specifications  
Nominal Diameter  
Nominal Impedance  
Minumum Impedance  
Power Handling  
320 mm (12 in.)  
8 Ω  
6.8 Ω  
(70 –700 Hz)  
Nominal1  
400 W  
800 W  
101 dB  
Continuous Program2  
Sensitivity (1W/1m)3  
Frequency Range  
Voice Coil Diameter  
Winding Material  
Former Material  
50-3000 Hz  
76 mm (3 in.)  
Copper  
Glass Fibre  
14 mm (9/16 in.)  
8 mm (5/16 in.)  
1.4 T  
Winding Depth  
Magnetic Gap Depth  
Flux Density  
Also available in 4 , data upon request  
4
Thiele & Small Parameters  
Fs  
52 Hz  
5.4 Ω  
0.2  
Re  
Qes  
Qms  
Qts  
Vas  
Sd  
η0  
6.3  
0.19  
71 dm.3 (2.5 cu. ft.)  
522 cm.2 (80.9 sq. in.)  
5 %  
X max  
Mms  
Bl  
3.5 mm.  
50 gr.  
21.3 Tm  
12 MH 32 | Mid-Bass  
Le  
1.1 mH  
Extremely high efficiency mid-bass, 3” aluminium  
voice coil, 800 watts power handling, provides  
excellent linearity up to 2.5 kHz. A dedicated  
magnet assembly that includes demodulation  
rings has been studied to control distortion  
Mounting and Shipping Informations  
Overall Diameter  
Bolt Circle Diameter  
Baffle Cutout Diameter  
Depth  
316 mm. (12.4 in.)  
296 mm. (11.6 in.)  
282 mm. (11.1 in.)  
134 mm. (5.3 in.)  
16 mm. (5/8 in.)  
7.4 Kg. (16.3 lb.)  
8.3 Kg. (18.3 lb.)  
380x380x170 mm  
(15x15x6.7 in.)  
Flange and Gasket Thickness  
Net Weight  
Shipping Weight  
Shipping Box  
1 2 hours test made with continuous pink noise signal (6 dB crest factor) within  
the specified range . Power calculated on rated minimum impedance.  
Loudspeaker in free air.  
2 Power on Continuous Program is defined as 3 dB greater than the Nominal rating.  
3 Applied RMS Voltage is set to 2.83V for 8 ohms and 4V for 16 ohms Nominal  
Impedance. Average SPL from 200 to 3000 Hz.  
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave pre-  
conditioning test.  
13  
 

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