Woofer




SPECIFICATION  DELTA 12+PSD 44-C




Nominal diameter


305mm.12in




Nominal impedance


8 ohm




Power rating


200w (LF) 50w (HF)




Sensitivity (1w/1m)


97dB±3dB 102dB±3dB




Frequency range


71-20KHz




Voice coil diameter


φ 65.5mm 44mm




Voice coil length


15mm




Air gap height


8mm




Magnet dimension


φ 156mm×20mm (LF)
φ 115mm×15mm (HF)




THIELE & SMALL PARAMETERS




Resonace frequency, FS


70Hz




D.C. resistance, Re


6 ohm




Mechanical quality factor, Qms


3.15




Electrical quality factor, Qes


0.4




Total quality factor, Qts


0.35




Equivalent air volume to Cms, Vas


28.5L




Mechanical compliance, Cms


0.16mm/N




Bl factor, BI


14.19N/A




Effective surface area, Sd


0.034m2




 
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




Depth


204mm




Net weight


8.5kg