Speaker - Jensen® Vintage Alnico, 10", P10R, 25W

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Speaker - Jensen® Vintage Alnico, 10", P10R, 25W

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The P10R is very important in the history of Jensen speakers. Its shimmering, yet throaty and vibrant tone is one of the signatures of the Tweed era and inspired the start-up of the British tones. It was the first speaker reissued by Jensen, presented to a restricted panel of partners at the 1999 Summer NAMM show. The P10R is the speaker that contributed to the magical tone of the 4x10 Bassman® Tweed amps, the 4x10 Super Tweed Amps and the equally mythical 3x10 Bandmaster® amps.

Guitarist Description: Rich, warm tone. Accentuates the higher frequencies in sparkling detail.

  • Lows: Loose
  • Mids: Firm
  • Highs: Smooth
  • Overdrive: Crunchy

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-P10R-168034028641497
4 ΩP-A-P10R-48034028640094
8 ΩP-A-P10R-88034028640100
Product Measurements
Basket MaterialPressed Sheet Steel
Cone MaterialPaper
Depth4.8031 in.
Diameter10 in.
Diaphragm Area (SD)4 Ω version330.00 cm2
8 Ω version330.10 cm2
16 Ω version330.00 cm2
Dust Dome MaterialFelt
Equivalent Acoustic Volume (VAS)4 Ω version29.00 liters
8 Ω version27.40 liters
16 Ω version29.50 liters
Flux Density0.96 T
Force Factor (BxL)4 Ω version4.60 Wb/m
8 Ω version5.83 Wb/m
16 Ω version7.27 Wb/m
Inner Diameter9.0944 in.
Linear Displacement, maximum (XMAX)4 Ω version0.80 mm
8 Ω version0.80 mm
16 Ω version0.75 mm
Losses Electrical Resistance (RES)4 Ω version59.20 Ω
8 Ω version102.00 Ω
16 Ω version149.00 Ω
Magnet Assembly Depth1.9488 in.
Magnet TypeAlnico
Magnetic Gap Depth6.00 mm
Mechanical Compliance (CMS)4 Ω version189.00 µm/N
8 Ω version177.00 µm/N
16 Ω version193.00 µm/N
Mechanical Moving Mass (MMS)4 Ω version13.70 g
8 Ω version15.20 g
16 Ω version13.40 g
Mechanical Q Factor (QMS)4 Ω version23.80
8 Ω version14.83
16 Ω version23.40
Mounting Hole Bolt Circle Diameter9.6456 in.
Mounting Hole Diameter0.2559 in.
Musical Power50.00 W
Nominal Overall Diameter259.00 mm
Nominal Voice Coil Diameter25.00 mm
Outer Diameter10.1969 in.
Rated Power25.00 W
Reference Efficiency (nO)4 Ω version1.85 %
8 Ω version1.70 %
16 Ω version1.43 %
Resonance Frequency (ƒS)4 Ω version99.00 Hz
8 Ω version97.00 Hz
16 Ω version99.00 Hz
Sensitivity @ 1W, 1m4 Ω version95.10 dB
8 Ω version94.20 dB
16 Ω version94.70 dB
Surround MaterialIntegrated Paper
Surround TreatmentNo
Total Q Factor (QTS)4 Ω version1.37
8 Ω version1.62
16 Ω version1.79
Voice Coil DC Resistance (Re)4 Ω version3.60 Ω
8 Ω version6.68 Ω
16 Ω version12.30 Ω
Voice Coil Diameter1 in.
Voice Coil FormerKapton
Voice Coil Inductance @ 1 kHZ (LE)4 Ω version0.35 mH
8 Ω version0.54 mH
16 Ω version0.75 mH
Voice Coil Winding Depth8.00 mm
Voice Coil Winding TypeCopper
Packaging Information
Packaging Dimensions11.811 in. × 12.2047 in. × 6.6929 in.
Weight (Packaging)3.8 lbs.

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Specifications, Files, and Documents

Sound Samples:

PDF: Specification Sheet Specification Sheet223.67 KB
PNG: Terminal Dimensions Terminal Dimensions21.21 KB

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Product Reviews

5.00 out of 5 based on 3 reviews
- October 10th, 2010
5 out of 5

These speakers came stock in my Super Reverb Reissue. I have never had need to replace them, they provide all the warm clean tones I need, and have that magic sparkle. Driven hard, they crunch nicely, never "farty" on the low end.

- February 10th, 2010
5 out of 5

I agree with Ross - these speakers are a solid replacement. My amp tech recommended that I replace the CTS speakers that were stock in my vintage Super Reverb. I will admit that I was a little hesitant to mess with the original speakers, but the P10R has really livened this amp up. Highly recommended.

- February 8th, 2010
5 out of 5

I have these in my Fender Super and they just sound so sweet, and I was watching the Super and see that Pete Townshend uses the the Fender Vibro King amp that uses these as well, what is good for Pete is good for me!

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