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JENSEN C12Q 35WATT 8 OHM 12" CERAMIC MAGNET SPEAKER. USED IN MANY VINTAGE AMPS: R12R, GS12R JET AND MOST OTHER SMALL COMBOS.
General Characteristics
Nominal Overall Diameter 306 mm 12 in
Nominal Voice Coil Diameter 32 mm 1.25 in
Magnet Weight 426 g 15 oz
Overall Weight 4.10 lbs
Flux Density 0.92 T
Thiele-Small Parameters
Voice Coil DC Resistance RE 6.36 Ω
Resonance Frequency ƒS 87.3 Hz
Mechanical Q Factor QMS 13.14
Electrical Q Factor QES 1.94
Total Q Factor QTS 1.69
Mechanical Moving Mass MMS 25.5 g
Mechanical Compliance CMS 130 µm/N
Force Factor BxL 6.78 Wb/m
Equivalent Acoustic Volume VAS 44.1 lt.
Maximum Linear Displacement XMAX 1.5 mm
Reference Efficiency nO 1.45 %
Diaphragm Area SD 490.8 cm2
Losses Electrical Resistance RES 43.2 Ω
Voice Coil Inductance @ 1kHz LE 0.63 mH
Constructive Characteristics
Magnet Ferrite
Voice Coil Winding Copper
Voice Coil Former Epotex
Cone Paper
Surround Integrated Paper
Dust Dome Solid Paper
Basket Pressed Sheet Steel
Electrical Characteristics
Nominal Impedance 8 OHM
Rated Power 35 W
Musical Power 70 W
Sensitivity@1W,1m 94.6 db
$ 88.00
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