General Characteristics

• Nominal Overall Diameter 259 mm 10 in
• Nominal Voice Coil Diameter 25 mm 1 in
• Magnet Weight 200 g 7.0 oz
• Overall Weight 3.15 lbs
• Flux Density .96 T
   

Electrical Characteristics

• Nominal Impedance 8ohms
  
• Rated Power 25 W
  
• Musical Power 50 W
  
• Sensitivity@1W,1m 95.0 dB

Thiele-Small Parameters

• Voice Coil DC Resistance RE 6.00
• Resonance Frequency ƒS 80.0 Hz
• Mechanical Q Factor QMS 12.73
• Electrical Q Factor QES 2.09
• Total Q Factor QTS 1.79
• Mechanical Moving Mass MMS 20.3 g
• Mechanical Compliance CMS 196 µm/N
• Force Factor BxL 5.55 Wb/m
• Equivalent Acoustic Volume VAS 66.4 lt.
• Maximum Linear Displacement XMAX 1.0 mm
• Reference Efficiency nO 1.56 %
• Diaphragm Area SD 490.8 cm2
• Losses Electrical Resistance RES 39.0 ?
• Voice Coil Inductance @ 1kHz LE 0.50 mH

Constructive Characteristics

• Magnet AlNiCo
• Voice Coil Winding Copper
• Voice Coil Former Kapton
• Cone Paper
• Surround Integrated Paper
• Dust Dome Solid Paper
• Basket Pressed Sheet Steel