Detailed Product Description

Specification
Nominal Diameter:   320 (12) mm (in)
Nominal Impedance (1):  8 Ohm
Minimum Impedence:   6.4 Ohm
Nominal Power Handling (2):   350 W
Continuous Power Handling (3):   700 W
Sensitivity (1W/1m) (4):   98.5 dB
Frequency Range:   50 - 2000 Hz
Voice Coil Diameter:   76 (3) mm (in)
Winding Material:   Aluminium
Former Material:   Glass Fibre
Winding Depth:   16 (5/8) mm (in)
Magnetic Gap Depth:   10.5 (0.4) mm (in)
Flux Density:   1.05 T
Thiele & Small Parameters
Fs:   50 Hz
Re:   5.3 Ohm
Qes:   0.24
Qms:   5.2
Qts:   0.23
Vas:   75 (2.6) dm3 (ft3)
Sd:   522 (80.9) cm2 (in2)
Eta Zero:   3.8 %
Xmax:   +/- 5 mm
Xvar:   +/- 7 mm
Mms:   51 g
Bl:   18.6 Txm
Le:   1.2 mH

Mounting and Shipping Info

Overall Diameter:   316 mm (12.4 in)
Bolt Circle Diameter:   296 mm (11.6 in)
Baffle Cutout Diameter:   282 mm (11.1 in)
Depth:   136 mm (5.35 in)
Flange and Gasket Thickness:   16 mm (5/8 in)
Net Weight:   7.4 kg (16.4 lb)
Shipping Weight:   8.2 kg (18 lb)
Shipping Box:   340x340x170 mm
                       (13.4x13.4x6.7 in)