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PF-42580
Time:2008-11-08 20:49:26        Click:2091
More Infomation

SPCEIFICATINONS   
Nomin diameter :           101.6mm. 4in
Nomin al impe dance:    4 ohm
Power rating:                40W RM S                                   
Sensitivity (1w/1m) :     90dB±3dB
Frequency range:          145-17KHz
Voice Coil diameter :      φ25.5mm
Voice coil length:           7.6mm
Air gap height:               5mm
magnet dimension :       φ80mm*18mm 

THIELE & SMALL PARAMETERS
Resonace frequency,FS:                145Hz
D.C.Resistan ce,Re:                       3.4 ohm
Mechanical quality factor,Qms:      3.19
Electrical quality factor,Qes:          0.84
Total quality factor,Qts:                 0.66
Equivalent air volme to Cms,Vas:  1.9L
Mechanical compliance,Cms:          0.31mm/N
Mechanical resistance,Rms:          1.1kg/s
Bl factor,Bl:                                    3.8N/A
Effective surface area,Sd:            0.0066㎡

MATERIALS
Basket:                     Steel
Cone and dust can : Paper
Surround:                 Treated cloth
Voice coil wire:         Copper Clad ALribbon
Voice coil bobbin:      Kapton 
Magnet:                    Ferrite 

MOUNTING INFORMATION
Overall diameter:         113.5*113.5mm
Bolt circle diameter:     φ119mm
Baffle cutout diameter:φ104mm
Depth:                         64mm
Net weight:                 0.85kg

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