Specification Sheet - C12K
12" - 100 W Vintage Ceramic Loudspeaker
| 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 | 4.3 kg | 9.48 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 |
4Ω
|
8Ω
|
16Ω
|
||
|---|---|---|---|---|---|
| Voice Coil DC Resistance | RE | 3.25 | 6.75 | 12 | Ω |
| Resonance Frequency | ƒS | 102 | 115 | 113.3 | Hz |
| Mechanical Q Factor | QMS | 19.8 | 16.4 | 17.41 | |
| Total Q Factor | QTS | 0.52 | 0.82 | 0.86 | |
| Mechanical Moving Mass | MMS | 34.9 | 33.4 | 35.6 | g |
| Mechanical Compliance | CMS | 70 | 57 | 55 | µm/N |
| Force Factor | BxL | 11.65 | 13.7 | 18.3 | Wb/m |
| Equivalent Acoustic Volume | VAS | 23.6 | 19.6 | 19 | lt. |
| Maximum Linear Displacement | XMAX | ±1 | ±1 | ±1 | mm |
| Reference Efficiency | nO | 4.47 | 4.43 | 3.89 | % |
| Diaphragm Area | SD | 490.9 | 490.9 | 490.9 | cm2 |
| Losses Electrical Resistance | RES | 120 | 210 | 360 | Ω |
| Voice Coil Inductance @ 1kHz | LE | 0.61 | 0.84 | 1.36 | mH |
| Electrical Q Factor | QES | 0.53 | 0.86 | 0.90 | |
| Constructive Characteristics | ||
|---|---|---|
| Magnet | Ferrite | |
| Voice Coil Winding | Copper | |
| Voice Coil Former | Kapton | |
| Cone Material | Paper | |
| Surround Material | Integrated Paper | |
| Dust Dome Material | Non-treated Cloth | |
| Basket Material | Pressed Sheet Steel | |
| Surround Treatment | Yes | |
| Electrical Characteristics |
4Ω
|
8Ω
|
16Ω
|
||
|---|---|---|---|---|---|
| Nominal Impedance | 4 | 8 | 16 | Ω | |
| Rated Power | 100 | 100 | 100 | W | |
| Musical Power | 200 | 200 | 200 | W | |
| Sensitivity@1W,1m | 99.4 | 99 | 99 | dB | |
Product Dimensions
