B&C Speakers 12 PH 32 Specifications

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.

Specifications

Nominal Diameter

320 mm (12 in)

Nominal Impedance

8 

Ω

Minumum Impedance

6.5 

Ω

Power Handling

(60 –600 Hz)

Nominal

1

250 W 

Continuous Program

2

500 W 

Sensitivity (1W/1m)

3

99.5 dB

Frequency Range

45-4000 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 Parameters

4

Fs

42 Hz

Re

5.8 

Ω

Qes

0.3

Qms

4.3

Qts

0.28

Vas

155 dm

3

(5.47 ft

3

) 

Sd

522 cm

2

(80.9 in

2

)

η

0

3.8%

X max

± 3 mm

X var

± 4.5 mm

Mms

35 g

Bl

13.3 T·m

Le

1.3 mH

Mounting and Shipping Information 

Overall Diameter

316 mm (12.4 in)

Bolt Circle Diameter

296 mm (11.6 in)

Baffle Cutout Diameter

282 mm (11.1 in)

Depth

142 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 4000 Hz.

4 

Thiele-Small parameters are measured after a high level 20 Hz sine wave precon-

ditioning test.

12 PH 32 

|

Woofer