Specification Sheet - C10R

10" - 25 W Vintage Ceramic Loudspeaker
C10R -
General Characteristics
Nominal Overall Diameter 259 mm 10 in
Nominal Voice Coil Diameter 25 mm 0.98 in
Magnet Weight 270 g 10 oz
Overall Weight 1.2 kg 2.65 lbs
Flux Density 1 T
Voice Coil Winding Depth 8 mm 0.31 in
Magnetic Gap Depth 6 mm 0.24 in
Thiele-Small Parameters
Voice Coil DC Resistance RE 6.7 Ω
Resonance Frequency ƒS 96.6 Hz
Mechanical Q Factor QMS 9
Total Q Factor QTS 1.47
Mechanical Moving Mass MMS 17.6 g
Mechanical Compliance CMS 154 µm/N
Force Factor BxL 6.42 Wb/m
Equivalent Acoustic Volume VAS 23.8 lt.
Maximum Linear Displacement XMAX ±0.8 mm
Reference Efficiency nO 1.5 %
Diaphragm Area SD 330.1 cm2
Losses Electrical Resistance RES 42 Ω
Voice Coil Inductance @ 1kHz LE 0.53 mH
Electrical Q Factor QES 1.76
Constructive Characteristics
Magnet Ferrite
Voice Coil Winding Copper
Voice Coil Former Kapton
Cone Material Paper
Surround Material Integrated Paper
Dust Dome Material Solid Paper
Basket Material Pressed Sheet Steel
Surround Treatment Yes
Electrical Characteristics
Nominal Impedance 8 Ω
Rated Power 25 W
Musical Power 50 W
Sensitivity@1W,1m 93.6 dB
21.8231.0n° 8 holes 8.4×6.5on Ø245.0259.02.54.565.587.35.0Ø86.0