B&C Speakers 12 PH 32 User manual

Speakers HPL Coaxials HF Compression drivers Horns
High efficiency 12" woofer using a 2.5" aluminium voice coil.
Smooth, extended frequency response and very good LF
performance in compact bass-reflex enclosures makes it an
optimal choice for a two-way system.
Specification
Nominal Diameter 320 mm (12 in)
Nominal Impedance 8 Ω
Minumum Impedance 6.5 Ω
Power Handling
(60 –600 Hz)
Nominal1250 W
Continuous Program2500 W
Sensitivity (1W/1m)399.5 dB
Frequency Range 5- 000 Hz
Voice Coil Diameter 65 mm (2.5 in)
Winding Material Aluminium
Former Material Glass Fibre
Winding Depth 12.5 mm (1/2 in)
Magnetic Gap Depth 9 mm (11/32 in)
Flux Density 1.2 T
Also available in 4 Ω, data upon request
Thiele & Small Parameter 4
Fs 2 Hz
Re 5.8 Ω
Qes 0.3
Qms .3
Qts 0.28
Vas 155 dm3(5. 7 ft3)
Sd 522 cm2(80.9 in2)
η03.8%
X max ± 3 mm
X var ± .5 mm
Mms 35 g
Bl 13.3 T·m
Le 1.3 mH
Mounting and Shipping Information
Overall Diameter 316 mm (12. in)
Bolt Circle Diameter 296 mm (11.6 in)
Baffle Cutout Diameter 282 mm (11.1 in)
Depth 1 2 mm (5.6 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 5 kg (11 lb)
Shipping Weight 5.9 kg (13 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 Nominal Impedance. Average
SPL from 200 to 000 Hz.
Thiele-Small parameters are measured after a high level 20 Hz sine wave precon-
ditioning test.
12 PH 32 |Woofer