Speaker - Jensen® Vintage Ceramic, 12", C12N, 50W

Jensen
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Speaker - Jensen® Vintage Ceramic, 12", C12N, 50W

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The C12N is one of the most important speakers in Jensen’s history. It is the top 12” speaker of the ‘Blackface Era, used by many American manufacturers in the mid ‘60s for their upper range models when the price of AlNiCo became unsustainable for the manufacturers. Clear highs, solid mids, and powerful basses, it epitomizes the tone of that decade, from the surf, the rock n’ roll, the electric blues and the West Coast inspired music. It was used in Twin, Bassmanä and Bandmasterä style amps, and many others.

Guitarist Description: Smooth and straightforward, full bodied tone with high frequency chime. It responds to overdrive distortion with powerful mid bite.

  • Lows: Loose
  • Mids: Aggressive
  • Highs: Bright
  • Overdrive: Crunchy

For more information about our Jensen® speakers, see our tech corner article on Jensen Speakers.

RoHS Compliant
SKU:
P-A-C12N
Item ID:
001919
Brand:
JensenJensen VintageCeramic
Size:
Part Numbers
ImpedanceOur Part NumberUPC/EANJensen Part Number
16 ΩP-A-C12N-168034028640391 ZJ06141
4 ΩP-A-C12N-48034028640599 ZJ06141
8 ΩP-A-C12N-88034028640384 ZJ06141
Product Measurements by Type
Basket MaterialPressed Sheet Steel
Cone MaterialPaper
Depth5.0393 in.
Diameter12 in.
Diaphragm Area (SD)490.90 cm2
Dust Dome MaterialSolid Paper
Equivalent Acoustic Volume (VAS)4 Ω versionP-A-C12N-422.80 liters
8 Ω versionP-A-C12N-822.60 liters
16 Ω versionP-A-C12N-1628.0 liters
Flux Density1.15 T
Force Factor (BxL)4 Ω versionP-A-C12N-48.60 Wb/m
8 Ω versionP-A-C12N-810.46 Wb/m
16 Ω versionP-A-C12N-1613.35 Wb/m
Inner Diameter10.9055 in.
Linear Displacement, maximum (XMAX)4 Ω versionP-A-C12N-41.50 mm
8 Ω versionP-A-C12N-81.00 mm
16 Ω versionP-A-C12N-161.00 mm
Losses Electrical Resistance (RES)4 Ω versionP-A-C12N-423.20 Ω
8 Ω versionP-A-C12N-842.50 Ω
16 Ω versionP-A-C12N-1670.00 Ω
Magnet Assembly Diameter5.2755 in.
Magnet TypeFerrite
Magnetic Gap Depth8.00 mm
Mechanical Compliance (CMS)4 Ω versionP-A-C12N-467.00 µm/N
8 Ω versionP-A-C12N-866.00 µm/N
16 Ω versionP-A-C12N-1683.00 µm/N
Mechanical Moving Mass (MMS)4 Ω versionP-A-C12N-429.40 g
8 Ω versionP-A-C12N-829.90 g
16 Ω versionP-A-C12N-1625.60 g
Mechanical Q Factor (QMS)4 Ω versionP-A-C12N-46.55
8 Ω versionP-A-C12N-87.52
16 Ω versionP-A-C12N-166.84
Mounting Hole Bolt Circle Diameter11.5551 in.
Mounting Hole Diameter0.2559 in.
Musical Power100.00 W
Nominal Overall Diameter307.00 mm
Nominal Voice Coil Diameter38.00 mm
Outer Diameter12.0866 in.
Rated Power50.00 W
Reference Efficiency (nO)4 Ω versionP-A-C12N-43.40 %
8 Ω versionP-A-C12N-83.48 %
16 Ω versionP-A-C12N-162.80 %
Resonance Frequency (ƒS)4 Ω versionP-A-C12N-4113.30 Hz
8 Ω versionP-A-C12N-8113.00 Hz
16 Ω versionP-A-C12N-16110.00 Hz
Sensitivity @ 1W, 1m4 Ω versionP-A-C12N-498.40 dB
8 Ω versionP-A-C12N-897.70 dB
16 Ω versionP-A-C12N-1697.50 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)4 Ω versionP-A-C12N-40.82
8 Ω versionP-A-C12N-81.02
16 Ω versionP-A-C12N-161.06
Voice Coil DC Resistance (Re)4 Ω versionP-A-C12N-46.50 Ω
8 Ω versionP-A-C12N-86.05 Ω
16 Ω versionP-A-C12N-1612.50 Ω
Voice Coil Diameter1.5 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)4 Ω versionP-A-C12N-40.58 mH
8 Ω versionP-A-C12N-80.90 mH
16 Ω versionP-A-C12N-161.55 mH
Voice Coil Winding Depth10.00 mm
Voice Coil Winding TypeCopper
Packaging Information
Packaging Dimensions4 Ω versionP-A-C12N-413.385 in. × 13.385 in. × 7.874 in.
8 Ω versionP-A-C12N-813.3858 in. × 13.3858 in. × 7.874 in.
16 Ω versionP-A-C12N-1613.3858 in. × 13.3858 in. × 7.874 in.
Weight (Packaging)8.2 lbs.
Product Measurements by Item
P-A-C12N-16 - 16 Ω versionBasket MaterialPressed Sheet Steel
Cone MaterialPaper
Depth5.0393 in.
Diameter12 in.
Diaphragm Area (SD)490.90 cm2
Dust Dome MaterialSolid Paper
Equivalent Acoustic Volume (VAS)28.0 liters
Flux Density1.15 T
Force Factor (BxL)13.35 Wb/m
Inner Diameter10.9055 in.
Linear Displacement, maximum (XMAX)1.00 mm
Losses Electrical Resistance (RES)70.00 Ω
Magnet Assembly Diameter5.2755 in.
Magnet TypeFerrite
Magnetic Gap Depth8.00 mm
Mechanical Compliance (CMS)83.00 µm/N
Mechanical Moving Mass (MMS)25.60 g
Mechanical Q Factor (QMS)6.84
Mounting Hole Bolt Circle Diameter11.5551 in.
Mounting Hole Diameter0.2559 in.
Musical Power100.00 W
Nominal Overall Diameter307.00 mm
Nominal Voice Coil Diameter38.00 mm
Outer Diameter12.0866 in.
Rated Power50.00 W
Reference Efficiency (nO)2.80 %
Resonance Frequency (ƒS)110.00 Hz
Sensitivity @ 1W, 1m97.50 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)1.06
Voice Coil DC Resistance (Re)12.50 Ω
Voice Coil Diameter1.5 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)1.55 mH
Voice Coil Winding Depth10.00 mm
Voice Coil Winding TypeCopper
P-A-C12N-4 - 4 Ω versionBasket MaterialPressed Sheet Steel
Cone MaterialPaper
Depth5.0393 in.
Diameter12 in.
Diaphragm Area (SD)490.90 cm2
Dust Dome MaterialSolid Paper
Equivalent Acoustic Volume (VAS)22.80 liters
Flux Density1.15 T
Force Factor (BxL)8.60 Wb/m
Inner Diameter10.9055 in.
Linear Displacement, maximum (XMAX)1.50 mm
Losses Electrical Resistance (RES)23.20 Ω
Magnet Assembly Diameter5.2755 in.
Magnet TypeFerrite
Magnetic Gap Depth8.00 mm
Mechanical Compliance (CMS)67.00 µm/N
Mechanical Moving Mass (MMS)29.40 g
Mechanical Q Factor (QMS)6.55
Mounting Hole Bolt Circle Diameter11.5551 in.
Mounting Hole Diameter0.2559 in.
Musical Power100.00 W
Nominal Overall Diameter307.00 mm
Nominal Voice Coil Diameter38.00 mm
Outer Diameter12.0866 in.
Rated Power50.00 W
Reference Efficiency (nO)3.40 %
Resonance Frequency (ƒS)113.30 Hz
Sensitivity @ 1W, 1m98.40 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)0.82
Voice Coil DC Resistance (Re)6.50 Ω
Voice Coil Diameter1.5 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)0.58 mH
Voice Coil Winding Depth10.00 mm
Voice Coil Winding TypeCopper
P-A-C12N-8 - 8 Ω versionBasket MaterialPressed Sheet Steel
Cone MaterialPaper
Depth5.0393 in.
Diameter12 in.
Diaphragm Area (SD)490.90 cm2
Dust Dome MaterialSolid Paper
Equivalent Acoustic Volume (VAS)22.60 liters
Flux Density1.15 T
Force Factor (BxL)10.46 Wb/m
Inner Diameter10.9055 in.
Linear Displacement, maximum (XMAX)1.00 mm
Losses Electrical Resistance (RES)42.50 Ω
Magnet Assembly Diameter5.2755 in.
Magnet TypeFerrite
Magnetic Gap Depth8.00 mm
Mechanical Compliance (CMS)66.00 µm/N
Mechanical Moving Mass (MMS)29.90 g
Mechanical Q Factor (QMS)7.52
Mounting Hole Bolt Circle Diameter11.5551 in.
Mounting Hole Diameter0.2559 in.
Musical Power100.00 W
Nominal Overall Diameter307.00 mm
Nominal Voice Coil Diameter38.00 mm
Outer Diameter12.0866 in.
Rated Power50.00 W
Reference Efficiency (nO)3.48 %
Resonance Frequency (ƒS)113.00 Hz
Sensitivity @ 1W, 1m97.70 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)1.02
Voice Coil DC Resistance (Re)6.05 Ω
Voice Coil Diameter1.5 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)0.90 mH
Voice Coil Winding Depth10.00 mm
Voice Coil Winding TypeCopper

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Specifications, Files, and Documents

Sound Samples:

PDF: Specification Sheet Specification Sheet182.41 KB
PNG: Terminal Dimensions Terminal Dimensions21.21 KB

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Product Reviews

5.00 out of 5 based on 2 reviews
- November 17th, 2019
5 out of 5

Best replacement speakers for the money.

- February 9th, 2010
5 out of 5

Out of all the Jensen, Celestion and Eminence speakers I've played through trying to find the best tone for blues, jazz and rock 'n' roll... the C12N is my favorite! I don't know how they do it, but this ceramic magnet speaker is so warm and versatile.