Specifications
Nominal Diameter 250 mm (10 in.)
Nominal Impedance 8 Ω
Minumum Impedance 6.9 Ω
Power Handling
(60 –600 Hz)
Nominal
1
250 W
Continuous Program2
500 W
Sensitivity (1W/1m)
3
99 dB
Frequency Range 60-4000 Hz
Voice Coil Diameter 65 mm (2.5 in.)
Winding Material Aluminium
Former Material Glass Fibre
Winding Depth 12 mm (1/2 in.)
Magnetic Gap Depth 8 mm (5/16 in.)
Flux Density 1.25 T
Also available in 16 Ω, data upon request
Thiele & Small Parameters
4
Fs 60 Hz
Re 5.7 Ω
Qes 0.19
Qms 6.3
Qts 0.18
Vas 37 dm.
3
(1.3 cu. ft.)
Sd 320 cm.
2
(49.1 sq. in.)
η0
4.1 %
X max ± 2.4 mm.
Mms 27 gr.
Bl 17.7 Tm
Le 1.3 mH
Mounting and Shipping Informations
Overall Diameter 260 mm. (10.2 in.)
Bolt Circle Diameter 244 mm. (9.6 in.)
Baffle Cutout Diameter 228 mm. (8.8 in.)
Depth 110 mm. (4.3 in.)
Flange and Gasket Thickness 17 mm. (2/3 in.)
Net Weight 7.1 Kg. (15.6 lb.)
Shipping Weight 7.8 Kg. (17.2 lb.)
Shipping Box 320x320x160 mm
(12x12x6.3 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 and 4V for 16 ohms Nominal
Impedance. Average SPL from 200 to 4000 Hz.
4
Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.