Typically used in the lower powered 12” amps for studio or practice, the C12R is a clear sounding, sparkling speaker, very sensitive to the character of amplifier. When paired with a stout, rich and warm electronic design it can do wonders. Ampeg® Jets and Reverberockets are just some of the most revered amps that carried C12R as their factory choice.

Guitarist Description: Warm low and mid response with smooth/bright highs. When presented with overdrive distortion, it presents smooth crunch with low-end focus.

• Lows: Tight
• Mids: Firm
• Highs: Bright
• Overdrive: Crunchy

Product Measurements

Diameter: 12 in.
Voice Coil Diameter: 1 in.
Depth: 4.3661 in.
Outer Diameter: 12.0275 in.
Inner Diameter: 10.9055 in.
Mounting Hole Bolt Circle Diameter: 11.5551 in.
Magnet Assembly Diameter: 3.3858 in.
Mounting Hole Diameter: 0.2559 in.
Nominal Overall Diameter: 306.00 mm
Nominal Voice Coil Diameter: 25.00 mm
Flux Density: 1.00 T
Voice Coil Winding Depth: 8.00 mm
Magnetic Gap Depth: 6.00 mm
Magnet Type: Ferrite
Voice Coil Winding Type: Copper
Voice Coil Former: Kapton
Cone Material: Paper
Surround Material: Integrated Paper
Dust Dome Material: Felt
Basket Material: Pressed Sheet Steel
Surround Treatment: No
Voice Coil DC Resistance (Re): 6.70 Ω
Resonance Frequency (ƒS): 88.30 Hz
Mechanical Q Factor (QMS): 18.52
Total Q Factor (QTS): 2.47
Mechanical Moving Mass (MMS): 29.50 g
Mechanical Compliance (CMS): 110.00 µm/N
Force Factor (BxL): 6.24 Wb/m
Equivalent Acoustic Volume (VAS): 37.50 liters
Linear Displacement, maximum (XMAX): 0.80 mm
Reference Efficiency (nO): 1.20 %
Diaphragm Area (SD): 490.90 cm2
Losses Electrical Resistance (RES): 67.00 Ω
Voice Coil Inductance @ 1 kHZ (LE): 0.49 mH
Rated Power: 25.00 W
Musical Power: 50.00 W
Sensitivity @ 1W, 1m: 92.30 dB