Specification Sheet - C12K-2

12" - 100 W Vintage Ceramic Loudspeaker
C12K-2 -
8Ω /
16Ω
General Characteristics
Nominal Overall Diameter 307 mm 12 in
Nominal Voice Coil Diameter 50 mm 2 in
Magnet Weight 1450 g 51 oz
Overall Weight 4.3 kg 9.48 lbs
Flux Density 1.15 T
Voice Coil Winding Depth 10 mm 0.39 in
Magnetic Gap Depth 8 mm 0.31 in
Thiele-Small Parameters
16Ω
Voice Coil DC Resistance RE 6.7 12 Ω
Resonance Frequency ƒS 79 85 Hz
Mechanical Q Factor QMS 12.07 12.07
Total Q Factor QTS 0.47 0.59
Mechanical Moving Mass MMS 32.2 28.5 g
Mechanical Compliance CMS 126 123 µm/N
Force Factor BxL 14.73 17.19 Wb/m
Equivalent Acoustic Volume VAS 43.1 42.1 lt.
Diaphragm Area SD 490.9 490.9 cm2
Voice Coil Inductance @ 1kHz LE 0.84 1.21 mH
Electrical Q Factor QES 0.49 0.62
Constructive Characteristics
Magnet Ferrite
Voice Coil Winding Copper
Voice Coil Former Nomex
Cone Material Paper
Surround Material Integrated Paper
Dust Dome Material Non-treated Cloth
Basket Material Pressed Sheet Steel
Surround Treatment Yes
Electrical Characteristics
16Ω
Nominal Impedance 16 Ω
Rated Power 100 W
Musical Power 200 W
Sensitivity@1W,1m 99.5 dB
Product Dimensions
C12K-2 Angled View
C12K-2 Bottom View
C12K-2 Side View
C12K-2 Top View