B&C Speakers Mid-Bass 12 MH 32 User manual

Speakers Coaxials HF Compression drivers Horns
13
B&C
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
Specifications
Nominal Diameter 20 mm (12 in.)
Nominal Impedance 8 Ω
Minumum Impedance 6.8 Ω
Power Handling
(70 –700 Hz)
Nominal1400 W
Continuous Program2800 W
Sensitivity (1W/1m) 101 dB
Frequency Range 50- 000 Hz
Voice Coil Diameter 76 mm ( in.)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 14 mm (9/16 in.)
Magnetic Gap Depth 8 mm (5/16 in.)
Flux Density 1.4 T
Also available in 4 Ω, data upon request
Thiele Small Parameters4
Fs 52 Hz
Re 5.4 Ω
Qes 0.2
Qms 6.
Qts 0.19
Vas 71 dm. (2.5 cu. ft.)
Sd 522 cm.2(80.9 sq. in.)
η05 %
X max ± .5 mm.
Mms 50 gr.
Bl 21. Tm
Le 1.1 mH
Mounting and Shipping Informations
Overall Diameter 16 mm. (12.4 in.)
Bolt Circle Diameter 296 mm. (11.6 in.)
Baffle Cutout Diameter 282 mm. (11.1 in.)
Depth 1 4 mm. (5. in.)
Flange and Gasket Thickness 16 mm. (5/8 in.)
Net Weight 7.4 Kg. (16. lb.)
Shipping Weight 8. Kg. (18. lb.)
Shipping Box 80x 80x170 mm
(15x15x6.7 in.)
12 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.
2Power on Continuous Program is defined as dB greater than the Nominal rating.
Applied RMS Voltage is set to 2.8 V for 8 ohms and 4V for 16 ohms Nominal
Impedance. Average SPL from 200 to 000 Hz.
4Thiele-Small parameters are measured after a high level 20 Hz sine wave pre-
conditioning test.
12 MH 32 |Mid-Bass