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LF Speaker Ferrite


Key Features



MODEL W085042
Nominal Diameter 200/8 mm/inch
Rated impedance 8 ohm
Power handing capacity 120 watts
Sensitivity(1w/1m) 94 dB
Frequency Range Fs-4000 Hz
Voice Coil Diameter 50/2 mm/inch
Voice Coil Material Copper
Number of layer 2
Kind of layer inside/outside 
Resonance frequency Fs 58 Hz 
Dc resistance Re 6.1 ohm
Mechanical factor Qms 6.97
Electrical factor Qes 0.34
Total factor Qts 0.33
BL factor BL 13 T.M
Effective Moving mass Mms 23.06 g
Effective Cas air load Vas 20.22 liters
Effective piston area Sd 0.0214 m^2
Overall Diameter Φ210/Φ8.27 mm/inch
Bolt Circle Diameter Φ197.5/Φ7.78 mm/inch 
Bolt Hole Diameter 8-Φ5.4/8-Φ0.21 mm/inch
Mount Baffle Cut-out Φ186/Φ7.32 mm/inch
Depth 104/5.4.09 mm/inch
Net Weight     (4 unit) 12.8 kg
Shipping Weight  (4 unit) 14.8 kg
Package Size    (4 unit) 480*245*265 mm 

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