B&C Speakers 15CX40 User Manual
15CX40
Coaxials
800 W continuous program power capacity
80° nominal coverage
45 – 20000 Hz response
99 dB sensitivity
XO-4 dedicated crossover network
LF Drivers LF Nd Drivers Coaxials HF Drivers Horns
Specifications
Nominal Diameter 380 mm (15 in)
Nominal Impedance 8 ohm
Minimum Impedance 5.8 ohm (LF)
7.9 ohm (HF)
Frequency Range 45 - 20000 Hz
Dispersion Angle (1) 80°
LF Unit
Sensitivity (1W/1m) (2) 99 dB
Nominal Power Handling (3) 400 W
Continuous Power Handling (4) 800 W
Voice Coil Diameter 76 mm (3 in)
Winding Material Aluminium
HF Unit
Sensitivity (1W/1m) (5) 106 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 44 Hz
Re 5.1 ohm
Qes 0.46
Qms 6.7
Qts 0.43
Vas 162 dm3 (5.7 ft3)
Sd 855 cm2 (132.5 in2)
Eta Zero 2.8 %
Xmax +/- 4.5 mm
Xvar +/- 5.5 mm
Mms 84 g
Bl 15.9 Txm
Le 1.1 mH
Mounting and Shipping Info
Overall Diameter 394 mm (15.5 in)
Bolt Circle Diameter 374 mm (14.7 in)
Baffle Cutout Diameter 355 mm (14 in)
Depth 219 mm (8.6 in)
Flange and Gasket Thickness 16 mm 8 (5/8 in)
Net Weight 12.1 kg (26.6 lb)
Shipping Weight 13.5 kg (29.7 lb)
Shipping Box 450x450x290 mm
(17.7x17.7x11.4 in)
Crossover
Model XO-4
Filter Type Two way
Nominal Impedance 8 Ohm
Crossover Frequency 1.2 kHz
Slope 6 dB/oct. (Low)
Overall Dimensions 142x107 mm (5.6x4.2 in)
Weight 0.6 kg (1.3 lb)
1
Included by –6 dB down points, averaged from 1 kHz to 8 kHz with B&C
XO-4 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. with eq. (High)
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