C12D

C12D

General Characteristics for 4Ω

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 for 4Ω

Voice Coil DC Resistance
RE
3.1 Ω
Resonance Frequency
ƒS
62.5 Hz
Mechanical Q Factor
QMS
3.3
Electrical Q Factor
QES
0.42
Total Q Factor
QTS
0.37
Mechanical Moving Mass
MMS
34.8 g
Mechanical Compliance
CMS
186 µm/N
Force Factor
BxL
10.12 Wb/m
Equivalent Acoustic Volume
VAS
63.8 lt.
Diaphragm Area
SD
490.9 cm2
Voice Coil Inductance @ 1kHz
LE
0.22 mH

Constructive Characteristics for 4Ω

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 for 4Ω

Nominal Impedance
4 Ω
Rated Power
150 W
Sensitivity@1W,1m
98.9 dB

General Characteristics for 8Ω

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 for 8Ω

Voice Coil DC Resistance
RE
5.3 Ω
Resonance Frequency
ƒS
62.3 Hz
Mechanical Q Factor
QMS
4.26
Electrical Q Factor
QES
0.44
Total Q Factor
QTS
0.4
Mechanical Moving Mass
MMS
32 g
Mechanical Compliance
CMS
204 µm/N
Force Factor
BxL
12.25 Wb/m
Equivalent Acoustic Volume
VAS
69.6 lt.
Diaphragm Area
SD
490.9 cm2
Voice Coil Inductance @ 1kHz
LE
0.27 mH

Constructive Characteristics for 8Ω

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 for 8Ω

Nominal Impedance
8 Ω
Rated Power
150 W
Sensitivity@1W,1m
99.6 dB
C12D
12",
150 watts
Ohms:

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.