JENSEN Vintage Ceramic C12K 8 Ohm Speaker

A real workhorse, heavy on the mids with a solid, straightforward tone. When presented with overdrive distortion it powers through with lows that are bold and heavy.

General Characteristics

• Nominal Overall Diameter 307 mm 12 in
  
• Nominal Voice Coil Diameter 50 mm 2 in
  
• Magnet Weight 1450 g 50 oz
  
• Overall Weight 9.65 lbs
  
• Flux Density 1.10 T

Thiele-Small Parameters

• Voice Coil DC Resistance RE 7.0 Ω
  
• Resonance Frequency ƒS 104.0 Hz
  
• Mechanical Q Factor QMS 20.41
  
• Electrical Q Factor QES .67
  
• Total Q Factor QTS .65
  
• Mechanical Moving Mass MMS 28.8 g
  
• Mechanical Compliance CMS 82 µm/N
  
• Force Factor BxL 13.95 Wb/m
  
• Equivalent Acoustic Volume VAS 27.6 lt.
  
• Maximum Linear Displacement XMAX 1.0 mm
  
• Reference Efficiency nO 4.43 %
  
• Diaphragm Area SD 490.9 cm2
  
• Losses Electrical Resistance RES 210 Ω
  
• Voice Coil Inductance @ 1kHz LE 0.84 mH
  

Constructive Characteristics

• Magnet Ferrite
  
• Voice Coil Winding Copper
  
• Voice Coil Former Kapton
  
• Cone Paper
  
• Surround Integrated Paper
  
• Dust Dome Non Treated Cloth
  
• Basket Pressed Sheet Steel
  

Electrical Characteristics

• Nominal Impedance 8 Ω
  
• Rated Power 100 W
  
• Musical Power 200 W
  
• Sensitivity@1W,1m 99.1 db