Detailed Product Description

Specification
Nominal Diameter:   320 (12) mm (in)
Nominal Impedance (1):   8 Ohm
Minimum Impedence:   6.2 Ohm
Nominal Power Handling (2):   400 W
Continuous Power Handling (3):   800 W
Sensitivity (1W/1m) (4):   100 dB
Frequency Range:   50 - 2000 Hz
Voice Coil Diameter:   76 (3) mm (in)
Winding Material:  Aluminium
Former Material:  Glass Fibre
Winding Depth: 19 (3/4) mm (in)
Magnetic Gap Depth:   10 (0.4) mm (in)
Flux Density:   1.25 T
Thiele & Small Parameters
Fs:   50 Hz
Re:   5.1 Ohm
Qes:   0.21
Qms:   4.2
Qts:   0.20
Vas:   73 (2.5) dm3 (ft3)
Sd:   522 (80.9) cm2 (in2)
Eta Zero:   4.3 %
Xmax: +/- 6.5 mm
Xvar:  +/- 6.5 mm
Mms:  53 g
Bl:  20.1 Txm
Le:  1 mH

Mounting and Shipping Info

Overall Diameter:   315 mm (12.4 in)
Bolt Circle Diameter:   298 mm (11.7 in)
Baffle Cutout Diameter:   283 mm (11.1 in)
Depth:   141 mm (5.5 in)
Flange and Gasket Thickness:   14 mm (0.55 in)
Net Weight:   3.9 kg (8.6 lb)
Shipping Weight:   4.5 kg (9.9 lb)
Shipping Box:   340x340x170 mm
                      (13.4x13.4x6.7 in)