Specification
Nominal Diameter
320 (12) mm (in)
8 Ohm
Nominal Impedance (1)
Minimum Impedence
Nominal Power Handling (2)
Continuous Power Handling (3)
Sensitivity (1W/1m) (4)
Frequency Range
6.9 Ohm
500 W
1000 W
98.5 dB
40 -2000 Hz
76 (3) mm (in)
Copper
Voice Coil Diameter
Winding Material
Former Material
Winding Depth
Magnetic Gap Depth
Flux Density
Glass Fibre
19 (3/4) mm (in)
11 (7/16) mm (in)
1.3 T
Thiele & Small Parameters
Fs
Re
Qes
Qms
Qts
40 Hz
5.3 Ohm
0.17
3.7
0.16
Vas
Sd
76 (2.7) dm3 (ft3)
522 (80.9) cm2 (in2)
2.8 %
Eta Zero
Xmax
Xvar
Mms
Bl
+/- 8 mm
+/- 10 mm
77 g
25.5 Txm
Le
1.25 mH
Mounting and Shipping Info
Woofer
1000 W continuous program power capacity
76 mm (3 in) copper voice coil
40 – 2000 Hz response
12NW76
Overall Diameter
Bolt Circle Diameter
Baffle Cutout Diameter
Depth
315 mm (12.4 in)
298 mm (11.7 in)
283 mm (11.1 in)
147 mm (5.8 in)
14 mm (0.55 in)
4.9 kg (10.8 lb)
Flange and Gasket Thickness
Net Weight
98.5 dB sensitivity
Neodymium ring magnet assembly
Aluminium demodulating ring allows a very low distortion figure
Ventilated voice coil gap for reduced power compression
Shipping Weight
Shipping Box
5.6 kg (12.3 lb)
340x340x170 mm
(13.4x13.4x6.7 in)
1
For different impedances, please ask.
2
2 hours test made with continuous pink noise signal (6 dB crest factor).
Power calculated on rated minimum impedance.
Power on Continuous Program is defined as 3 dB greater than the
Nominal rating.
3
4
Applied RMS Voltage is set to 2.83V for 8 ohms or 2.0V for 4 ohms
Nominal Impedance
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