Nominal Diameter 320 mm (12 in)
Nominal Impedance 8 Ω
Minumum Impedance 6.3 Ω
Power Handling
(70 –700 Hz)
Nominal1 350 W
Continuous Program2 700 W
Sensitivity (1W/1m)3 98.5 dB
Frequency Range 50-3500 Hz
Voice Coil Diameter 76 mm (3 in)
Winding Material Aluminium
Former Material Glass Fibre
Winding Depth 16 mm (5/8 in)
Magnetic Gap Depth 10 mm (3/8 in)
Flux Density 1.1 T
Thiele & Small Parameters4
Fs 49 Hz
Re 5.3 Ω
Qes 0.26
Qms 6.1
Qts 0.25
Vas 97 dm3 (3.42 ft3)
Sd 522 cm2 (80.9 in2)
η0 4.1%
X max ± 3.5 mm
X var ± 5 mm
Mms 42 g
Bl 16.1 T·m
Le 1.6 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 134 mm (5.3 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 7.4 kg (16.3 lb)
Shipping Weight 8.3 kg (18.3 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 3500 Hz.
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning
test.
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