Woofer




SPECIFICATION




Nominal diameter


203mm.8in




Nominal impedance


8 ohm




Power rating


120w RMS




Sensitivity (1w/1m)


95dB±3dB




Frequency range


88-4.5KHz




Voice coil diameter


φ 49.5mm




Voice coil length


12mm




Air gap height


8mm




Magnet dimension


φ 140mm×20mm




THIELE & SMALL PARAMETERS




Resonace frequency, FS


88Hz




D.C. resistance, Re


6.0 ohm




Mechanical quality factor, Qms


3.13




Electrical quality factor, Qes


0.54




Total quality factor, Qts


0.46




Equivalent air volume to Cms, Vas


9.5L




Mechanical compliance, Cms


0.13mm/N




Bl factor, BI


11.91N/A




Effective surface area, Sd


0.02m2




 
MATERIALS




Basket


Steel




Cone and dust can


Paper




Surround


Treated Cloth




Voice coil wire


Copper




Voice coil bobbin


Kapton




Magnet


Ferrite




MOUNTING INFORMATION




Overall diameter


φ 210mm




Bolt cicrcle diameter


φ 198mm




Baffle cutout diameter


φ 186mm




Depth


101mm




Net weight


3.3kg