SPCEIFICATINONS   
Nomin diameter :           254mm.10in
Nomin al impe dance:    8 ohm
Power rating:                200W(LF)40w(HF)                                          
Sensitivity (1w/1m) :     96dB±3dB,102dB±3dB
Frequency range:          70-20kHz
Voice Coil diameter :      φ65.5mm 34.4MM
Voice coil length:           15mm
Air gap height:               8mm
magnet dimension :       φ156mm*20mm
                                      φ115mm*15mm 

THIELE & SMALL PARAMETERS
Resonace frequency,FS:                70Hz
D.C.Resistan ce,Re:                       6 ohm
Mechanical quality factor,Qms:      3.15
Electrical quality factor,Qes:          0.4
Total quality factor,Qts:                 0.35
Equivalent air volme to Cms,Vas:  28.5L
Mechanical compliance,Cms:          0.16mm/N
Bl factor,Bl:                                    14.19N/A
Effective surface area,Sd：            0.034㎡

MATERIALS
Basket:                     Steel
Cone and dust can : Paper(LF)
                                 Titanium(HF)
Surround:                 Treated cloth
Voice coil wire:         Copper(LF)
                                Copper clad Al Ribbor(HF)
Voice coil bobbin:      Kapton
Magnet:                    Ferrite
Net weight:               4kg