JENSEN C15N 15", 8 OHM, 50 WATT SPEAKER B15N, GEM II

C15N

JENSEN C15N 50WATT 8 OHM 15" CERAMIC MAGNET SPEAKER. USED IN MANY VINTAGE AMPS; AMPEG B15, GEMINI II AND MORE.


General Characteristics 
Nominal Overall Diameter  385 mm  15 in 
Nominal Voice Coil Diameter  38 mm  1.5 in 
Magnet Weight  810 g  28.5 oz 
Overall Weight  9.05 lbs 
Flux Density  1.00 T 

Thiele-Small Parameters 
Voice Coil DC Resistance  RE  6.5 Ω 
Resonance Frequency  ƒS  73.0 Hz 
Mechanical Q Factor  QMS  7.34
Electrical Q Factor  QES  1.24
Total Q Factor  QTS  1.06
Mechanical Moving Mass  MMS  40.6 g 
Mechanical Compliance  CMS  117.0 µm/N 
Force Factor  BxL  9.93 Wb/m 
Equivalent Acoustic Volume  VAS  93.4 lt. 
Maximum Linear Displacement  XMAX  1.0 mm 
Reference Efficiency  nO  2.84 % 
Diaphragm Area  SD  754.7 cm2 
Losses Electrical Resistance  RES  39.0 Ω 
Voice Coil Inductance @ 1kHz  LE  0.93 mH 

Constructive Characteristics 
Magnet  Ferrite
Voice Coil Winding  Copper 
Voice Coil Former  Kapton
Cone  Paper 
Surround  Integrated Paper
Dust Dome  Solid Paper
Basket  Pressed Sheet Steel 

Electrical Characteristics 
Nominal Impedance  8 Ω 
Rated Power  50 W 
Musical Power  100 W 
Sensitivity@1W,1m  97.4 dB

$ 106.74

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