General Characteristics

• Nominal Overall Diameter 307 mm 12 in
• Nominal Voice Coil Diameter 38 mm 1.5 in
• Magnet Weight 826 g 29 oz
• Overall Weight 6.80 lbs
• Flux Density 1.26 T

Electrical Characteristics

• Nominal Impedance 8
• Rated Power 50 W
• Musical Power 100 W
• Sensitivity@1W,1m 98.4 dB

Thiele-Small Parameters

• Voice Coil DC Resistance RE 6.20 ?
• Resonance Frequency ƒS 90.0 Hz
• Mechanical Q Factor QMS 5.72
• Electrical Q Factor QES 0.82
• Total Q Factor QTS 0.72
• Mechanical Moving Mass MMS 26.7 g
• Mechanical Compliance CMS 119 µm/N
• Force Factor BxL 10.64 Wb/m
• Equivalent Acoustic Volume VAS 40.2 lt.
• Maximum Linear Displacement XMAX 1.0 mm
• Reference Efficiency nO 3.4 %
• Diaphragm Area SD 490.8 cm2
• Losses Electrical Resistance RES 43.0 ?
• Voice Coil Inductance @ 1kHz LE 0.87 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