Specification Sheet - C12D

12" - 150 W D-Series Loudspeaker
C12D -
4Ω /
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 4.6 kg 10.14 lbs
Flux Density 1.1 T
Voice Coil Winding Depth 10 mm 0.39 in
Magnetic Gap Depth 8 mm 0.31 in
Thiele-Small Parameters
Voice Coil DC Resistance RE 3.1 5.3 Ω
Resonance Frequency ƒS 62.5 62.3 Hz
Mechanical Q Factor QMS 3.3 4.26
Total Q Factor QTS 0.37 0.4
Mechanical Moving Mass MMS 34.8 32 g
Mechanical Compliance CMS 186 204 µm/N
Force Factor BxL 10.12 12.25 Wb/m
Equivalent Acoustic Volume VAS 63.8 69.6 lt.
Diaphragm Area SD 490.9 490.9 cm2
Voice Coil Inductance @ 1kHz LE 0.22 0.27 mH
Electrical Q Factor QES 0.42 0.44
Constructive Characteristics
Magnet Ferrite
Voice Coil Winding Copper
Voice Coil Former Aluminum
Cone Material Paper
Surround Material Integrated Paper
Dust Dome Material Non-treated Cloth
Basket Material Pressed Sheet Steel
Surround Treatment Yes
Electrical Characteristics
Nominal Impedance 4 8 Ω
Rated Power 150 150 W
[email protected],1m 98.9 99.6 dB
Product Dimensions
Note: all dimensions are in mm.
C12D Angled View
C12D Bottom View
C12D Side View
C12D Top View