B&C Speakers 12CX32 User Manual
12CX32
Coaxials
700 W continuous program power capacity
80° nominal coverage
55 – 20000 Hz response
99 dB sensitivity
XO-3 dedicated crossover network
LF Drivers LF Nd Drivers Coaxials HF Drivers Horns
Specifications
Nominal Diameter 320 mm (12 in)
Nominal Impedance 8 ohm
Minimum Impedance 6.2 ohm (LF)
7.8 ohm (HF)
Frequency Range 55 - 20000 Hz
Dispersion Angle (1) 80°
LF Unit
Sensitivity (1W/1m) (2) 99 db
Nominal Power Handling (3) 350 W
Continuous Power Handling (4) 700 W
Voice Coil Diameter 76 mm (3 in)
Winding Material Aluminium
HF Unit
Sensitivity (1W/1m) (5) 105 dB
Nominal Power Handling (6) 80 W
Continuous Power Handling (7) 160 W
Voice Coil Diameter 75 mm (3 in)
Winding Material Aluminium
Diaphragm Material Titanium
Recom. Crossover (8) 1.2 kHz
Parameters
Fs 57 Hz
Re 5.1 ohm
Qes 0.3
Qms 5.2
Qts 0.28
Vas 79 dm3 (2.8 ft3)
Sd 522 cm2 (80.9 in2)
Eta Zero 4.7 %
Xmax +/- 4 mm
Xvar +/- 6 mm
Mms 38 g
Bl 15.3 Txm
Le 1.2 mH
Mounting and Shipping Info
Overall Diameter 316 mm (12.4 in)
Bolt Circle Diameter 296 mm (11.6 in)
Baffle Cutout Diameter 282 mm (11.1in)
Depth 190 mm (7.5 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 11.2 kg (24.6 lb)
Shipping Weight 12.3 kg (27 lb)
Shipping Box 380x380x240 mm
(15x15x9.4 in)
Crossover
Model XO-3
Filter Type Two way
Nominal Impedance 8 Ohm
Crossover Frequency 1.2 kHz
Slope 12 dB/oct. (Low)
Overall Dimensions 107x96 mm (4.2x3.8 in)
Weight 0.55 kg (1.2 lb)
1
Included by –6 dB down points, averaged from 1 kHz to 8 kHz with B&C
XO-3 crossover filter.
2
Applied RMS Voltage is set to 2.83V for 8 ohms Nominal Impedance.
3
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.
4
Power on Continuous Program is defined as 3 dB greater than the
Nominal rating.
5
Applied RMS Voltage is set to 2.83V for 8 ohms Nominal Impedance.
6
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.
7
Power on Continuous Program is defined as 3 dB greater than the
Nominal rating.
8
12 dB/oct. or higher slope high-pass filter.
12 db/oct. (High)
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