I just replaced the original C12R in my 1962 Gibson Falcon GA19RVT with a reissue C12R, after 46 years the original was a little tired. Good move! This reissue is the ticket!!
C12R
General Characteristics:
| Nominal Overall Diameter | 306 mm | 12 in |
| Nominal Voice Coil Diameter | 25 mm | 1.0 in |
| Magnet Weight | 270 g | 10 oz |
| Overall Weight | 3.10 lbs | |
| Flux Density | 1.0 T |
Thiele-Small Parameters:
| Voice Coil DC Resistance | RE | 6.50 Ω |
| Resonance Frequency | ƒS | 74.0 Hz |
| Mechanical Q Factor | QMS | 21.48 |
| Electrical Q Factor | QES | 2.06 |
| Total Q Factor | QTS | 1.88 |
| Mechanical Moving Mass | MMS | 24.6 g |
| Mechanical Compliance | CMS | 187 µm/N |
| Force Factor | BxL | 5.98 Wb/m |
| Equivalent Acoustic Volume | VAS | 63.2 lt. |
| Maximum Linear Displacement | XMAX | 0.8 mm |
| Reference Efficiency | nO | 1.2 % |
| Diaphragm Area | SD | 490.8 cm2 |
| Losses Electrical Resistance | RES | 67 Ω |
| Voice Coil Inductance @ 1kHz | LE | 0.49 mH |
Constructive Characteristics:
| Magnet | Ferrite |
| Voice Coil Winding | Copper |
| Voice Coil Former | Kapton |
| Cone | Paper |
| Surround | Integrated Paper |
| Dust Dome | Felt |
| Basket | Pressed Sheet Steel |
Electrical Characteristics:
| Nominal Impedance | 8 Ω |
| Rated Power | 25 W |
| Musical Power | 50 W |
| Sensitivity@1W,1m | 93.8 |
C12R
12", 25 watts, 8Ω
Warm low and mid response with smooth/bright highs. When presented with overdrive distortion, it presents smooth crunch with low-end focus.
Sound Samples:
Clean Sound Sample
Overdriven Sound Sample
Files:
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Gabby in Hopewell, VA






