Speaker - Jensen® Vintage Alnico, 12", P12N, 50W

Speaker - Jensen® Vintage Alnico, 12", P12N, 50W image 1
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Speaker - Jensen® Vintage Alnico, 12", P12N, 50W

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The AlNiCo P12N is surely one of the most iconic Jensen speakers of the late ‘50s. Visually impressive because of the big bell cover on the magnet, it is the highest powered 12” speaker in the range. Among others, the P12N was used in the high-end amps of the time such as the Fender® Tweed Twin. Crystal clear in the treble range with transparent mids and powerful but tight bass, it is the “King of Clean Tones”.

Guitarist Description: Very warm and full bodied tone with powerful mid-bite and sparkling highs. When presented with overdrive distortion it displays a bright and colorful crunch.

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

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

RoHS Compliant
Item ID:
JensenJensen VintageAlnico
Part Numbers
ImpedanceOur Part NumberUPC/EAN
16 ΩP-A-P12N-BELL168034028641695
8 ΩP-A-P12N-BELL88034028640292
Product Measurements
Basket MaterialPressed Sheet Steel
Bell Cover Depth3.2047 in.
Bell Cover Diameter6 in.
Cone MaterialPaper
Depth6.9448 in.
Diameter12 in.
Diaphragm Area (SD)8 Ω version490.90 cm2
16 Ω version490.80 cm2
Dust Dome MaterialSolid Paper
Equivalent Acoustic Volume (VAS)8 Ω version34.60 liters
16 Ω version42.20 liters
Flux Density1.26 T
Force Factor (BxL)8 Ω version10.62 Wb/m
16 Ω version13.71 Wb/m
Inner Diameter10.9055 in.
Linear Displacement, maximum (XMAX)1.00 mm
Losses Electrical Resistance (RES)8 Ω version43.00 Ω
16 Ω version70.00 Ω
Magnet TypeAlnico
Magnetic Gap Depth8.00 mm
Mechanical Compliance (CMS)8 Ω version101.00 µm/N
16 Ω version125.00 µm/N
Mechanical Moving Mass (MMS)8 Ω version30.90 g
16 Ω version27.00 g
Mechanical Q Factor (QMS)8 Ω version4.36
16 Ω version5.77
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)8 Ω version3.40 %
16 Ω version2.84 %
Resonance Frequency (ƒS)8 Ω version90.00 Hz
16 Ω version91.00 Hz
Sensitivity @ 1W, 1m8 Ω version97.50 dB
16 Ω version97.80 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)8 Ω version0.77
16 Ω version0.84
Voice Coil DC Resistance (Re)8 Ω version6.03 Ω
16 Ω version12.00 Ω
Voice Coil Diameter1.5 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)8 Ω version0.87 mH
16 Ω version1.05 mH
Voice Coil Winding Depth10.00 mm
Voice Coil Winding TypeCopper
Packaging Information
Packaging Dimensions12.5984 in. × 12.5984 in. × 7.874 in.
Weight (Packaging)7.85 lbs.

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Specifications, Files, and Documents

Sound Samples:

PDF: Specification Sheet Specification Sheet191.54 KB
PNG: Terminal Dimensions Terminal Dimensions21.21 KB

Questions and Answers

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Asked by Anonymous on July 27th, 2018.
July 27th, 2018
Staff Member
The Blackbird (P-A-JP12-100BB) would be a more comparable speaker to the Celestion Gold than the P12N, but comparing speakers is pretty subjective. Give us a ring here at (480) 296-0890 and we would be happy to discuss these in more detail.

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