Speaker - Jensen® Vintage Alnico, 12", P12R, 25W

Speaker - Jensen® Vintage Alnico, 12", P12R, 25W

Jensen
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$137.95
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The smallest powered AlNiCo 12” in the range, the P12R is the classic choice for the lower powered combo amps of the tweed era. It was very common in Fender®, Epiphone® and Ampeg® amps until the early ‘60s. The P12R is bright and colorful, has excellent cut and sparkle, and breaks up easily.

Guitarist Description: Straightforward, bright tone.

  • Lows: Loose
  • Mids: Firm
  • Highs: Bright
  • Overdrive: Edgy/Crunchy

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

SKU:
P-A-P12R
Item ID:
001975
Brand:
JensenJensen VintageAlnico
Magnet Type:
Size:
RoHS Compliant
Part Numbers
ImpedanceOur Part NumberUPC/EANJensen Part Number
16 ΩP-A-P12R-168034028640322 ZJ06070
8 ΩP-A-P12R-88034028640339 ZJ06080
Basket MaterialPressed Sheet Steel
Cone MaterialPaper
Depth5.4566 in.
Diameter12 in.
Diaphragm Area (SD)8 Ω versionP-A-P12R-8490.90 cm2
16 Ω versionP-A-P12R-16490.80 cm2
Dust Dome MaterialSolid Paper
Equivalent Acoustic Volume (VAS)8 Ω versionP-A-P12R-854.00 liters
16 Ω versionP-A-P12R-1672.60 liters
Flux Density0.96 T
Force Factor (BxL)8 Ω versionP-A-P12R-85.53 Wb/m
16 Ω versionP-A-P12R-166.68 Wb/m
Inner Diameter10.9055 in.
Linear Displacement, maximum (XMAX)8 Ω versionP-A-P12R-81.00 mm
16 Ω versionP-A-P12R-160.75 mm
Losses Electrical Resistance (RES)8 Ω versionP-A-P12R-839.00 Ω
16 Ω versionP-A-P12R-1658.00 Ω
Magnet Assembly Depth1.9488 in.
Magnet TypeAlnico
Magnetic Gap Depth6.00 mm
Mechanical Compliance (CMS)8 Ω versionP-A-P12R-8157.00 µm/N
16 Ω versionP-A-P12R-16214.00 µm/N
Mechanical Moving Mass (MMS)8 Ω versionP-A-P12R-825.20 g
16 Ω versionP-A-P12R-1619.90 g
Mechanical Q Factor (QMS)8 Ω versionP-A-P12R-813.07
16 Ω versionP-A-P12R-1612.53
Mounting Hole Bolt Circle Diameter11.5551 in.
Mounting Hole Diameter0.2559 in.
Musical Power50.00 W
Nominal Overall Diameter307.00 mm
Nominal Voice Coil Diameter25.00 mm
Outer Diameter12.0275 in.
Rated Power25.00 W
Reference Efficiency (nO)8 Ω versionP-A-P12R-81.56 %
16 Ω versionP-A-P12R-161.19 %
Resonance Frequency (ƒS)8 Ω versionP-A-P12R-880.00 Hz
16 Ω versionP-A-P12R-1677.00 Hz
Sensitivity @ 1W, 1m8 Ω versionP-A-P12R-893.70 dB
16 Ω versionP-A-P12R-1694.00 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)8 Ω versionP-A-P12R-82.10
16 Ω versionP-A-P12R-162.20
Voice Coil DC Resistance (Re)8 Ω versionP-A-P12R-86.05 Ω
16 Ω versionP-A-P12R-1612.00 Ω
Voice Coil Diameter1 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)8 Ω versionP-A-P12R-80.50 mH
16 Ω versionP-A-P12R-160.84 mH
Voice Coil Winding Depth8.00 mm
Voice Coil Winding TypeCopper
Packaging Information
Packaging Dimensions13.3858 in. × 13.3858 in. × 7.874 in.
Weight (Packaging)4.9869 lbs.
P-A-P12R-16 - 16 Ω versionBasket MaterialPressed Sheet Steel
Cone MaterialPaper
Depth5.4566 in.
Diameter12 in.
Diaphragm Area (SD)490.80 cm2
Dust Dome MaterialSolid Paper
Equivalent Acoustic Volume (VAS)72.60 liters
Flux Density0.96 T
Force Factor (BxL)6.68 Wb/m
Inner Diameter10.9055 in.
Linear Displacement, maximum (XMAX)0.75 mm
Losses Electrical Resistance (RES)58.00 Ω
Magnet Assembly Depth1.9488 in.
Magnet TypeAlnico
Magnetic Gap Depth6.00 mm
Mechanical Compliance (CMS)214.00 µm/N
Mechanical Moving Mass (MMS)19.90 g
Mechanical Q Factor (QMS)12.53
Mounting Hole Bolt Circle Diameter11.5551 in.
Mounting Hole Diameter0.2559 in.
Musical Power50.00 W
Nominal Overall Diameter307.00 mm
Nominal Voice Coil Diameter25.00 mm
Outer Diameter12.0275 in.
Rated Power25.00 W
Reference Efficiency (nO)1.19 %
Resonance Frequency (ƒS)77.00 Hz
Sensitivity @ 1W, 1m94.00 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)2.20
Voice Coil DC Resistance (Re)12.00 Ω
Voice Coil Diameter1 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)0.84 mH
Voice Coil Winding Depth8.00 mm
Voice Coil Winding TypeCopper
P-A-P12R-8 - 8 Ω versionBasket MaterialPressed Sheet Steel
Cone MaterialPaper
Depth5.4566 in.
Diameter12 in.
Diaphragm Area (SD)490.90 cm2
Dust Dome MaterialSolid Paper
Equivalent Acoustic Volume (VAS)54.00 liters
Flux Density0.96 T
Force Factor (BxL)5.53 Wb/m
Inner Diameter10.9055 in.
Linear Displacement, maximum (XMAX)1.00 mm
Losses Electrical Resistance (RES)39.00 Ω
Magnet Assembly Depth1.9488 in.
Magnet TypeAlnico
Magnetic Gap Depth6.00 mm
Mechanical Compliance (CMS)157.00 µm/N
Mechanical Moving Mass (MMS)25.20 g
Mechanical Q Factor (QMS)13.07
Mounting Hole Bolt Circle Diameter11.5551 in.
Mounting Hole Diameter0.2559 in.
Musical Power50.00 W
Nominal Overall Diameter307.00 mm
Nominal Voice Coil Diameter25.00 mm
Outer Diameter12.0275 in.
Rated Power25.00 W
Reference Efficiency (nO)1.56 %
Resonance Frequency (ƒS)80.00 Hz
Sensitivity @ 1W, 1m93.70 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)2.10
Voice Coil DC Resistance (Re)6.05 Ω
Voice Coil Diameter1 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)0.50 mH
Voice Coil Winding Depth8.00 mm
Voice Coil Winding TypeCopper

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Specifications, Files, and Documents

Sound Samples:

PDF: Specification Sheet Specification Sheet194.75 KB
PNG: Terminal Dimensions Terminal Dimensions21.21 KB
Questions? Contact us at [email protected], or give us a call at 480-820-5411

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