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Speaker - Jensen® Vintage Ceramic, 12", C12K, 100W
While not strictly a vintage reissue, the C12K is the first design that Jensen developed in the early ‘90s. It is tonally inspired by the classic vintage ceramic Jensen, but with a substantially stronger voice, full bass and smooth top end. The C12K became one of the speakers of choice for Fender®, used in a myriad of world-selling models. Vintage tone with modern power handling and dynamics are the key virtues of the C12K.
Guitarist Description: A real workhorse, heavy on the mids with a solid, straightforward tone. Presented with overdrive distortion it powers through with lows that are bold and heavy.
- Lows: Tight
- Mids: Aggressive
- Highs: Subtle
- Overdrive: Edgy/Crunchy
For more information about our Jensen® speakers, see our tech corner article on Jensen Speakers.
SKU:
P-A-C12K
Item ID:
001918
Brand:
JensenJensen VintageCeramic
Magnet Type:
Size:
Type:
Watts:
RoHS Compliant
| Impedance | Our Part Number | UPC/EAN | Jensen Part Number |
|---|---|---|---|
| 16 Ω | P-A-C12K-16 | 8034028640285 | ZJ06030 |
| 4 Ω | P-A-C12K-4 | 8034028640261 | ZJ06010 |
| 8 Ω | P-A-C12K-8 | 8034028640278 | ZJ06021 |
| Basket Material | Pressed Sheet Steel | ||
| Cone Material | Paper | ||
| Depth | 5.2362 in. | ||
| Diameter | 12 in. | ||
| Diaphragm Area (SD) | 490.90 cm2 | ||
| Dust Dome Material | Non-treated Cloth | ||
| Equivalent Acoustic Volume (VAS) | 4 Ω version | P-A-C12K-4 | 23.60 liters |
| 8 Ω version | P-A-C12K-8 | 24.10 liters | |
| 16 Ω version | P-A-C12K-16 | 26.0 liters | |
| Flux Density | 1.10 T | ||
| Force Factor (BxL) | 4 Ω version | P-A-C12K-4 | 11.65 Wb/m |
| 8 Ω version | P-A-C12K-8 | 14.00 Wb/m | |
| 16 Ω version | P-A-C12K-16 | 17.70 Wb/m | |
| Inner Diameter | 10.9055 in. | ||
| Linear Displacement, maximum (XMAX) | 1.00 mm | ||
| Losses Electrical Resistance (RES) | 4 Ω version | P-A-C12K-4 | 120.00 Ω |
| 8 Ω version | P-A-C12K-8 | 210.00 Ω | |
| 16 Ω version | P-A-C12K-16 | 360.00 Ω | |
| Magnet Assembly Depth | 1.3779 in. | ||
| Magnet Assembly Diameter | 6.1023 in. | ||
| Magnet Type | Ferrite | ||
| Magnetic Gap Depth | 8.00 mm | ||
| Mechanical Compliance (CMS) | 4 Ω version | P-A-C12K-4 | 70.00 µm/N |
| 8 Ω version | P-A-C12K-8 | 71.00 µm/N | |
| 16 Ω version | P-A-C12K-16 | 77.00 µm/N | |
| Mechanical Moving Mass (MMS) | 4 Ω version | P-A-C12K-4 | 34.90 g |
| 8 Ω version | P-A-C12K-8 | 31.90 g | |
| 16 Ω version | P-A-C12K-16 | 29.30 g | |
| Mechanical Q Factor (QMS) | 4 Ω version | P-A-C12K-4 | 19.80 |
| 8 Ω version | P-A-C12K-8 | 12.57 | |
| 16 Ω version | P-A-C12K-16 | 22.37 | |
| Mounting Hole Bolt Circle Diameter | 11.5551 in. | ||
| Mounting Hole Diameter | 0.2559 in. | ||
| Musical Power | 200.00 W | ||
| Nominal Overall Diameter | 307.00 mm | ||
| Nominal Voice Coil Diameter | 50.00 mm | ||
| Outer Diameter | 12.0866 in. | ||
| Rated Power | 100.00 W | ||
| Reference Efficiency (nO) | 4 Ω version | P-A-C12K-4 | 4.47 % |
| 8 Ω version | P-A-C12K-8 | 4.43 % | |
| 16 Ω version | P-A-C12K-16 | 3.89 % | |
| Resonance Frequency (ƒS) | 4 Ω version | P-A-C12K-4 | 102.00 Hz |
| 8 Ω version | P-A-C12K-8 | 106.20 Hz | |
| 16 Ω version | P-A-C12K-16 | 107.00 Hz | |
| Sensitivity @ 1W, 1m | 4 Ω version | P-A-C12K-4 | 99.40 dB |
| 8 Ω version | P-A-C12K-8 | 99.00 dB | |
| 16 Ω version | P-A-C12K-16 | 99.00 dB | |
| Surround Material | Integrated Paper | ||
| Surround Treatment | Yes | ||
| Total Q Factor (QTS) | 4 Ω version | P-A-C12K-4 | 0.52 |
| 8 Ω version | P-A-C12K-8 | 0.67 | |
| 16 Ω version | P-A-C12K-16 | 0.75 | |
| Voice Coil DC Resistance (Re) | 4 Ω version | P-A-C12K-4 | 3.25 Ω |
| 8 Ω version | P-A-C12K-8 | 6.53 Ω | |
| 16 Ω version | P-A-C12K-16 | 12.00 Ω | |
| Voice Coil Diameter | 2 in. | ||
| Voice Coil Former | Kapton | ||
| Voice Coil Inductance @ 1 kHZ (LE) | 4 Ω version | P-A-C12K-4 | 0.61 mH |
| 8 Ω version | P-A-C12K-8 | 0.84 mH | |
| 16 Ω version | P-A-C12K-16 | 1.36 mH | |
| Voice Coil Winding Depth | 10.00 mm | ||
| Voice Coil Winding Type | Copper |
| Packaging Dimensions | 13.3858 in. × 13.3858 in. × 7.874 in. | |
| Weight (Packaging) | 10.65 lbs. |
| P-A-C12K-16 - 16 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 5.2362 in. | |
| Diameter | 12 in. | |
| Diaphragm Area (SD) | 490.90 cm2 | |
| Dust Dome Material | Non-treated Cloth | |
| Equivalent Acoustic Volume (VAS) | 26.0 liters | |
| Flux Density | 1.10 T | |
| Force Factor (BxL) | 17.70 Wb/m | |
| Inner Diameter | 10.9055 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 360.00 Ω | |
| Magnet Assembly Depth | 1.3779 in. | |
| Magnet Assembly Diameter | 6.1023 in. | |
| Magnet Type | Ferrite | |
| Magnetic Gap Depth | 8.00 mm | |
| Mechanical Compliance (CMS) | 77.00 µm/N | |
| Mechanical Moving Mass (MMS) | 29.30 g | |
| Mechanical Q Factor (QMS) | 22.37 | |
| Mounting Hole Bolt Circle Diameter | 11.5551 in. | |
| Mounting Hole Diameter | 0.2559 in. | |
| Musical Power | 200.00 W | |
| Nominal Overall Diameter | 307.00 mm | |
| Nominal Voice Coil Diameter | 50.00 mm | |
| Outer Diameter | 12.0866 in. | |
| Rated Power | 100.00 W | |
| Reference Efficiency (nO) | 3.89 % | |
| Resonance Frequency (ƒS) | 107.00 Hz | |
| Sensitivity @ 1W, 1m | 99.00 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor (QTS) | 0.75 | |
| Voice Coil DC Resistance (Re) | 12.00 Ω | |
| Voice Coil Diameter | 2 in. | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1 kHZ (LE) | 1.36 mH | |
| Voice Coil Winding Depth | 10.00 mm | |
| Voice Coil Winding Type | Copper | |
| P-A-C12K-4 - 4 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 5.2362 in. | |
| Diameter | 12 in. | |
| Diaphragm Area (SD) | 490.90 cm2 | |
| Dust Dome Material | Non-treated Cloth | |
| Equivalent Acoustic Volume (VAS) | 23.60 liters | |
| Flux Density | 1.10 T | |
| Force Factor (BxL) | 11.65 Wb/m | |
| Inner Diameter | 10.9055 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 120.00 Ω | |
| Magnet Assembly Depth | 1.3779 in. | |
| Magnet Assembly Diameter | 6.1023 in. | |
| Magnet Type | Ferrite | |
| Magnetic Gap Depth | 8.00 mm | |
| Mechanical Compliance (CMS) | 70.00 µm/N | |
| Mechanical Moving Mass (MMS) | 34.90 g | |
| Mechanical Q Factor (QMS) | 19.80 | |
| Mounting Hole Bolt Circle Diameter | 11.5551 in. | |
| Mounting Hole Diameter | 0.2559 in. | |
| Musical Power | 200.00 W | |
| Nominal Overall Diameter | 307.00 mm | |
| Nominal Voice Coil Diameter | 50.00 mm | |
| Outer Diameter | 12.0866 in. | |
| Rated Power | 100.00 W | |
| Reference Efficiency (nO) | 4.47 % | |
| Resonance Frequency (ƒS) | 102.00 Hz | |
| Sensitivity @ 1W, 1m | 99.40 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor (QTS) | 0.52 | |
| Voice Coil DC Resistance (Re) | 3.25 Ω | |
| Voice Coil Diameter | 2 in. | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.61 mH | |
| Voice Coil Winding Depth | 10.00 mm | |
| Voice Coil Winding Type | Copper | |
| P-A-C12K-8 - 8 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 5.2362 in. | |
| Diameter | 12 in. | |
| Diaphragm Area (SD) | 490.90 cm2 | |
| Dust Dome Material | Non-treated Cloth | |
| Equivalent Acoustic Volume (VAS) | 24.10 liters | |
| Flux Density | 1.10 T | |
| Force Factor (BxL) | 14.00 Wb/m | |
| Inner Diameter | 10.9055 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 210.00 Ω | |
| Magnet Assembly Depth | 1.3779 in. | |
| Magnet Assembly Diameter | 6.1023 in. | |
| Magnet Type | Ferrite | |
| Magnetic Gap Depth | 8.00 mm | |
| Mechanical Compliance (CMS) | 71.00 µm/N | |
| Mechanical Moving Mass (MMS) | 31.90 g | |
| Mechanical Q Factor (QMS) | 12.57 | |
| Mounting Hole Bolt Circle Diameter | 11.5551 in. | |
| Mounting Hole Diameter | 0.2559 in. | |
| Musical Power | 200.00 W | |
| Nominal Overall Diameter | 307.00 mm | |
| Nominal Voice Coil Diameter | 50.00 mm | |
| Outer Diameter | 12.0866 in. | |
| Rated Power | 100.00 W | |
| Reference Efficiency (nO) | 4.43 % | |
| Resonance Frequency (ƒS) | 106.20 Hz | |
| Sensitivity @ 1W, 1m | 99.00 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor (QTS) | 0.67 | |
| Voice Coil DC Resistance (Re) | 6.53 Ω | |
| Voice Coil Diameter | 2 in. | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.84 mH | |
| Voice Coil Winding Depth | 10.00 mm | |
| Voice Coil Winding Type | Copper |
 Specification Sheet | All Models |
 Blues Sound Sample | All Models |
| Clean Sound Sample | All Models |
| Country Sound Sample | All Models |
| Jazz Sound Sample | All Models |
| Metal Sound Sample | All Models |
| Overdriven Sound Sample | All Models |
| Rock Sound Sample | All Models |
 Terminal Dimensions | All Models |
My Project Lists
Specifications, Files, and Documents
Sound Samples:
Blues Sound Sample00:49https://www.amplifiedparts.com/sites/default/files/associated_files/c12k_blues.mp3
Clean Sound Sample00:18https://www.amplifiedparts.com/sites/default/files/associated_files/c12k_clean.mp3
Country Sound Sample00:35https://www.amplifiedparts.com/sites/default/files/associated_files/c12k_country.mp3
Jazz Sound Sample00:43https://www.amplifiedparts.com/sites/default/files/associated_files/c12k_jazz.mp3
Metal Sound Sample00:53https://www.amplifiedparts.com/sites/default/files/associated_files/c12k_metal.mp3
Overdriven Sound Sample00:20https://www.amplifiedparts.com/sites/default/files/associated_files/c12k_overdriven.mp3
Rock Sound Sample00:41https://www.amplifiedparts.com/sites/default/files/associated_files/c12k_rock.mp3
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Terminal Dimensions Questions and Answers
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1 answers
Would 4 of these in closed cab pair well with a marshall jvm 410h?
Asked by Anonymous on January 19th, 2017.
This would be a nice change if you are looking for something different. These speakers will be voiced with more of an American flavor as compared to the typical British style of speakers. For more information please see the Jensen Tone Generator: https://www.jensentone.com/tone_generator
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Product Reviews
I bought this speaker to install in my Fender `65 Deluxe Reverb Reissue Amp. It is the same as the speaker that came in this amp but I had installed a Jensen 12" Electric Lightning 70 in it a few years ago to brighten up the sound a bit. This proved to be a little too bright so I decided to go back to what was originally in the amp (the original Jensen C12K now resides in the extension cabinet for my Fender Hot Rod Deluxe Amp). Jensen speakers are good solid performers with a reputation that goes back decades. Fender made a real good choice using them in some of their amps and I`m happy with the sound of this new C12K in this amp. What will I do with the 12" Electric Lightning 70? Well... I have a Fender Blues Jr. Amp ...
This is my favourite speaker. It has such a sweet sound and it's never too boomy. I'd highly recommend it for all styles of music. It's the stock speaker in my deluxe reverb and I had to get another one so I could have that familiar sound in a different cab. Amplified parts shipped it out very fast!
This speaker unbeknownst to me is what Fender now puts into their reissue Deluxe Reverbs. It replaces an aging Oxford in my own DRRI and the sonic improvement after the install was astounding. Deeper lows without flapping, tighter midrange and smoother highs, totally bringing the character of this venerable amp in line with my expectations.