General Specifications
Nominal diameter457mm/18in
Power rating700Wrms
Nominal impedance8Ω
Sensitivity94dB
Frequency range30-2500Hz
Voice coil diameter75mm/3in
Chassis typeCast Aluminium
Magnet typeFerrite
Coil materialRound Copper
Former materialGlass Fibre
Cone materialGlass-Reinforced Paper
Surround materialCloth-sealed
SuspensionSingle
Gap depth8mm/0.31in
Voice coil winding width18mm/0.71in
Xmax5mm/0.79in
Small Signal Parameters
D0.38m/14.96in
Fs40.5Hz
Mms167.47g/5.91oz
Qms4.367
Qes0.371
Mmd145.86g/5.15oz
Qts0.343
Re5.27Ω
Vas167.92lt/5.93ft3
BI24.6Tm
Cms0.092mm/N
Rms9.33kg/s
Le (at 1kHz)3.24mH
Mounting Information
Overall diameter460mm/18.11in
Overall depth211.3mm/8.31in
Cut-out diameter414mm/16.29in
Mounting slot dimensions9.25x7mm/0.36x0.28in
Number of mounting slots8
Mounting PCD range432-441mm/17.0-17.36in
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