C12D

C12D

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
Nominal Impedance
Voice Coil DC Resistance RE 3.1 Ω 5.3 Ω
Resonance Frequency ƒS 62.5 Hz 62.3 Hz
Mechanical Q Factor QMS 3.3 4.26
Electrical Q Factor QES 0.44
Total Q Factor QTS 0.37 0.4
Mechanical Moving Mass MMS 34.8 g 32 g
Mechanical Compliance CMS 186 µm/N 204 µm/N
Force Factor BxL 10.12 Wb/m 12.25 Wb/m
Equivalent Acoustic Volume VAS 63.8 lt. 69.6 lt.
Diaphragm Area SD 490.9 cm2 490.9 cm2
Voice Coil Inductance @ 1kHz LE 0.22 mH 0.27 mH
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
Rated Power 150 W 150 W
Sensitivity@1W,1m 98.9 dB 99.6 dB
12",
150 watts
Available in 4Ω, 8Ω

Extended response on the upper range, to transduce the detail of the digital effects and the harmonic content of a mic'ed guitar cabinet. Directly derived from the traditional guitar speakers, with integrated paper surround, the C12D is able to return the powerful, organic, warm tone and character of a classic guitar amplifier, but also the treble content and the complex harmonics of the overdrive, modulation, delay and reverb effects, as well as the crisp, natural tone of an amplified acoustic guitar.

Lows
Clear
Mids
Warm
Highs
Sparkling
Overdrive
Rich
Guitarist Description
The C12D was the missing component from my modelling rig. The full range response captures the complex tones of the amp and IR cab but pushes them in a way that feels and sounds like a traditional guitar stack.
Specification Sheet
Product Dimensions
Note: all dimensions are in mm.