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
320 mm (12 in.)
Nominal Impedance
8
Ω
Minumum Impedance
6.8
Ω
Power Handling
(70 –700 Hz)
Nominal
1
400 W
Continuous Program
2
800 W
Sensitivity (1W/1m)
3
101 dB
Frequency Range
50-3000 Hz
Voice Coil Diameter
76 mm (3 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 Parameters
4
Fs
52 Hz
Re
5.4
Ω
Qes
0.2
Qms
6.3
Qts
0.19
Vas
71 dm.
3
(2.5 cu. ft.)
Sd
522 cm.
2
(80.9 sq. in.)
η
0
5 %
X max
± 3.5 mm.
Mms
50 gr.
Bl
21.3 Tm
Le
1.1 mH
Mounting and Shipping Informations
Overall Diameter
316 mm. (12.4 in.)
Bolt Circle Diameter
296 mm. (11.6 in.)
Baffle Cutout Diameter
282 mm. (11.1 in.)
Depth
134 mm. (5.3 in.)
Flange and Gasket Thickness
16 mm. (5/8 in.)
Net Weight
7.4 Kg. (16.3 lb.)
Shipping Weight
8.3 Kg. (18.3 lb.)
Shipping Box
380x380x170 mm
(15x15x6.7 in.)
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.
12 MH 32
|
Mid-Bass
