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LF Speaker Ferrite


Key Features



MODEL W1812508
Nominal Diameter 465/18 mm/inch
Rated impedance 8 ohm
Power handing capacity 1200 watts
Sensitivity(1w/1m) 96 dB
Frequency Range FS-1800 Hz
Voice Coil Diameter 125/5 mm/inch
Voice Coil Material Copper
Number of layer 2
Kind of layer inside/outside 
Resonance frequency Fs 40 Hz 
Dc resistance Re 5.4 ohm
Mechanical factor Qms 9.8
Electrical factor Qes 0.44
Total factor Qts 0.42
BL factor BL 29 T.M
Effective Moving mass Mms 261.3 g
Effective Cas air load Vas 115.7 liters
Effective piston area Sd 0.1195 m^2
Overall Diameter Φ488/Φ19.22 mm/inch
Bolt Circle Diameter Φ473.5/Φ18.64 mm/inch 
Bolt Hole Diameter 6-Φ6.5/6-Φ0.26 mm/inch
Mount Baffle Cut-out Φ423/Φ16.66 mm/inch
Depth 184/7.25 mm/inch
Net We        (1 unit) 19.7 kg
Shipping Weight  (1 unit) 21.7 kg
Package Size    (1 unit) 500*500*240 mm 

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