C12N

General Characteristics for 4Ω
Nominal Overall Diameter307 mm12 in
Nominal Voice Coil Diameter38 mm1.5 in
Magnet Weight810 g28.5 oz
Overall Weight7.15 lbs
Flux Density1.15 T
Thiele-Small Parameters for 4Ω
Voice Coil DC ResistanceRE6.50 Ω
Resonance FrequencyƒS113.3 Hz
Mechanical Q FactorQMS6.55
Electrical Q FactorQES0.93
Total Q FactorQTS0.82
Mechanical Moving MassMMS29.4 g
Mechanical ComplianceCMS67 µm/N
Force FactorBxL8.60 Wb/m
Equivalent Acoustic VolumeVAS22.8 lt.
Maximum Linear DisplacementXMAX1.5 mm
Reference EfficiencynO3.40 %
Diaphragm AreaSD490.9 cm2
Losses Electrical ResistanceRES23.2 Ω
Voice Coil Inductance @ 1kHzLE0.58 mH
Constructive Characteristics for 4Ω
MagnetFerrite
Voice Coil WindingCopper
Voice Coil FormerKapton
ConePaper
SurroundIntegrated Paper
Dust DomeSolid Paper
BasketPressed Sheet Steel
Electrical Characteristics for 4Ω
Nominal Impedance4 Ω
Rated Power50 W
Musical Power100 W
Sensitivity@1W,1m98.4 db
General Characteristics for 8Ω
Nominal Overall Diameter307 mm12 in
Nominal Voice Coil Diameter38 mm1.5 in
Magnet Weight810 g28.5 oz
Overall Weight7.15 lbs
Flux Density1.15 T
Thiele-Small Parameters for 8Ω
Voice Coil DC ResistanceRE6.50 Ω
Resonance FrequencyƒS112.0 Hz
Mechanical Q FactorQMS7.01
Electrical Q FactorQES1.05
Total Q FactorQTS0.92
Mechanical Moving MassMMS25.2 g
Mechanical ComplianceCMS82 µm/N
Force FactorBxL10.39 Wb/m
Equivalent Acoustic VolumeVAS27.6 lt.
Maximum Linear DisplacementXMAX1.0 mm
Reference EfficiencynO3.48 %
Diaphragm AreaSD490.8 cm2
Losses Electrical ResistanceRES42.5 Ω
Voice Coil Inductance @ 1kHzLE0.9 mH
Constructive Characteristics for 8Ω
MagnetFerrite
Voice Coil WindingCopper
Voice Coil FormerKapton
ConePaper
SurroundIntegrated Paper
Dust DomeSolid Paper
BasketPressed Sheet Steel
Electrical Characteristics for 8Ω
Nominal Impedance8 Ω
Rated Power50 W
Musical Power100 W
Sensitivity@1W,1m98.4 db
General Characteristics for 16Ω
Nominal Overall Diameter307 mm12 in
Nominal Voice Coil Diameter38 mm1.5 in
Magnet Weight810 g28.5 oz
Overall Weight7.15 lbs
Flux Density1.15 T
Thiele-Small Parameters for 16Ω
Voice Coil DC ResistanceRE12.50 Ω
Resonance FrequencyƒS110.0 Hz
Mechanical Q FactorQMS6.84
Electrical Q FactorQES1.26
Total Q FactorQTS1.06
Mechanical Moving MassMMS25.6 g
Mechanical ComplianceCMS83 µm/N
Force FactorBxL13.35 Wb/m
Equivalent Acoustic VolumeVAS28.0 lt.
Maximum Linear DisplacementXMAX1.0 mm
Reference EfficiencynO2.80 %
Diaphragm AreaSD490.9 cm2
Losses Electrical ResistanceRES490.9 Ω
Voice Coil Inductance @ 1kHzLE1.55 mH
Constructive Characteristics for 16Ω
MagnetFerrite
Voice Coil WindingCopper
Voice Coil FormerKapton
ConePaper
SurroundIntegrated Paper
Dust DomeSolid Paper
BasketPressed Sheet Steel
Electrical Characteristics for 16Ω
Nominal Impedance16 Ω
Rated Power50 W
Musical Power100 W
Sensitivity@1W,1m97.5 db
12"
,
50 watts

The C12N has a smooth, straightforward and full-bodied tone with high frequency chime.

Specification Sheets:
Product Dimensions: 
Frequency Response Charts:

User Reviews

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Recently, I replaced the original Oxford speaker in my '67 Deluxe Reverb with a new jensen C12N speaker. I also replaced the 6V6 power tubes with 2 6L6s . Result, no drummer is now too loud, even though it's still a 20 watt amp. Beautiful clean, rich tones and the breakup is still there, of course, when required. I never put the volume past 4!

- Tony

Just got the Fender Hot Rod Deluxe S.E. with the C12N speaker and love it, put the tube screamer pedal on it and it comes alive, for a small package it handles the task easily, play everything from gospel to rock and it sounds equally good clean or gritty, good stuff.

- Len

I own a standard Fender Blues Junior, I discovered a variant of this amp in a Tweed version, which had a Jensen C12N. The difference was very apparent when I did an A/B comparison. I now play the Tweed amp more than the Tolex version. By the way, I also own a Fender 59 Bassman Ltd with four Jensen 10" speakers and it blows everything else out the door! Nuff said! I am a happy customer! Thanks!.

- Tom in New York City, New York

Great speakers. Liked them so much I picked up a C12N, P12Q and MOD 12-50 to re-do three respective new amps to give them a more vintage tone.

- Brian in Greenwood, IN

I have a Fender twin that sports two Jensen C12N's and am very happy with the sound.

- Jeff in Eden, NC

I use a reissue Fender Deluxe Reverb with a Jensen C12N an the tone is everything that a working Blues player could want. I have tried other speakers but I always go back to the Jensens. I even have them in my 68 Princeton Reverb, my 57 Deluxe and my Pro Junior.

- Reverend Paul in Rochester, NY

I picked up a couple of C12N reissues that sound great in my vintage Fender Bandmaster Cabinet. Jensen Speakers were the originals that gave Fender their classic sound. So thanks for all.

- Gilbert in Cupertino, CA

Just installed my C12N into my Blues Junior and what a difference its made. It is like the difference between instant and filter coffee, just a far richer, deeper more developed tone with 10 times the presence. A true Blues tone...

- Marco in London, England

I was able to get a good deal on a pair of C12N speakers to replace the pair of Jensen Vibrantos that were originally in my 1968 Fender Bandmaster. They sure do sound sweet.

- Joseph in Medford, NY