Specifications
Nominal Diameter
Nominal Impedance
Minumum Impedance
Power Handling
320 mm (12 in.)
8 Ω
6.8 Ω
(70 –700 Hz)
Nominal1
400 W
800 W
101 dB
Continuous Program2
Sensitivity (1W/1m)3
Frequency Range
Voice Coil Diameter
Winding Material
Former Material
50-3000 Hz
76 mm (3 in.)
Copper
Glass Fibre
14 mm (9/16 in.)
8 mm (5/16 in.)
1.4 T
Winding Depth
Magnetic Gap Depth
Flux Density
Also available in 4 Ω, data upon request
4
Thiele & Small Parameters
Fs
52 Hz
5.4 Ω
0.2
Re
Qes
Qms
Qts
Vas
Sd
η0
6.3
0.19
71 dm.3 (2.5 cu. ft.)
522 cm.2 (80.9 sq. in.)
5 %
X max
Mms
Bl
3.5 mm.
50 gr.
21.3 Tm
12 MH 32 | Mid-Bass
Le
1.1 mH
Extremely high efficiency mid-bass, 3” aluminium
voice coil, 800 watts power handling, provides
excellent linearity up to 2.5 kHz. A dedicated
magnet assembly that includes demodulation
rings has been studied to control distortion
Mounting and Shipping Informations
Overall Diameter
Bolt Circle Diameter
Baffle Cutout Diameter
Depth
316 mm. (12.4 in.)
296 mm. (11.6 in.)
282 mm. (11.1 in.)
134 mm. (5.3 in.)
16 mm. (5/8 in.)
7.4 Kg. (16.3 lb.)
8.3 Kg. (18.3 lb.)
380x380x170 mm
(15x15x6.7 in.)
Flange and Gasket Thickness
Net Weight
Shipping Weight
Shipping Box
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 and 4V for 16 ohms Nominal
Impedance. Average SPL from 200 to 3000 Hz.
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave pre-
conditioning test.
13
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