Specifications
Nominal Diameter
Nominal Impedance
Minumum Impedance
Power Handling
320 mm (12 in)
8 Ω
6.5 Ω
(60 –600 Hz)
Nominal1
250 W
500 W
99.5 dB
Continuous Program2
Sensitivity (1W/1m)3
Frequency Range
Voice Coil Diameter
Winding Material
Former Material
45-4000 Hz
65 mm (2.5 in)
Aluminium
Glass Fibre
12.5 mm (1/2 in)
9 mm (11/32 in)
1.2 T
Winding Depth
Magnetic Gap Depth
Flux Density
Also available in 4 Ω, data upon request
4
Thiele & Small Parameters
Fs
Re
42 Hz
5.8 Ω
Qes
Qms
Qts
Vas
Sd
0.3
4.3
0.28
155 dm3 (5.47 ft3)
522 cm2 (80.9 in2)
3.8%
η0
X max
X var
Mms
Bl
3 mm
4.5 mm
35 g
12 PH 32 | Woofer
13.3 T·m
1.3 mH
Le
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.
Mounting and Shipping Information
Overall Diameter
Bolt Circle Diameter
Baffle Cutout Diameter
Depth
Flange and Gasket Thickness
Net Weight
316 mm (12.4 in)
296 mm (11.6 in)
282 mm (11.1 in)
142 mm (5.6 in)
16 mm (5/8 in)
5 kg (11 lb)
Shipping Weight
Shipping Box
5.9 kg (13 lb)
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.
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