Jensen P12Q Vintage AlNiCo Guitar Speaker (40 Watts, 12")

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Jensen P12Q Vintage AlNiCo Guitar Speaker (40 Watts, 12"), Main
Jensen P12Q Vintage AlNiCo Guitar Speaker (40 Watts, 12"), Construction Diagram
Jensen P12Q Vintage AlNiCo Guitar Speaker (40 Watts, 12"), Frequency Chart
Jensen P12Q Vintage AlNiCo Guitar Speaker (40 Watts, 12"), Main Jensen P12Q Vintage AlNiCo Guitar Speaker (40 Watts, 12"), Construction Diagram Jensen P12Q Vintage AlNiCo Guitar Speaker (40 Watts, 12"), Frequency Chart
zZounds Gear Experts Say...
Hard-biting middles and bright highs define this vintage guitar speaker. These tones stay balanced when put into overdrive.

The P12Q has a very warm, mid-focused bite with clear, bright highs. When presented with overdrive distortion the P12Q remains well-balanced.

General Characteristics
Nominal Overall Diameter: 306 mm, 12 in.

Nominal Voice Coil Diameter: 32 mm, 1.25 in.

Magnet Weight: 300 g, 10.5 oz

Overall Weight: 4.10 lbs

Flux Density: 0.98 T

Thiele-Small Parameters
Voice Coil DC Resistance RE: 5.72 Ohm

Resonance Frequency fS: 90.4 Hz

Mechanical Q Factor QMS: 10.62

Electrical Q Factor QES: 2.38

Total Q Factor QTS: 1.94

Mechanical Moving Mass MMS: 22.1 g

Mechanical Compliance CMS: 140 um/N

Force Factor BxL: 5.50 Wb/m

Equivalent Acoustic Volume VAS: 47.5 lt.

Maximum Linear Displacement XMAX: 1.0 mm

Reference Efficiency nO: 1.42 %

Diaphragm Area SD: 490.8 cm2

Losses Electrical Resistance RES: 25.5 Ohm

Voice Coil Inductance @ 1kHz LE: 0.67 mH

Constructive Characteristics
Magnet: AlNiCo

Voice Coil: Winding Copper

Voice Coil: Former Nomex

Cone: Paper

Surround: Integrated Paper

Dust Dome: Solid Paper

Basket: Pressed Sheet Steel

Electrical Characteristics
Nominal Impedance: 8 Ohm

Rated Power: 40 W

Musical Power: 80 W

Sensitivity@1W,1m: 95.0 dB

Reviewers gave this product an overall rating of 5 out of 5 stars. (2 ratings)
Submitted October 19, 2015 by H S in Boston, MA

"Gutsy speaker with a lot of nuance"

Overall: 5 out of 5 stars
(see rating details)
Put this in a Fender Hot Rod Deluxe (a replacement for the same speaker in a special edition Hot Rod). Both this and the original speaker sound fantastic -- other Hot Rod owners almost always comment on it. We use it in a drum/guitar duo and so we beat it up pretty hard to get all the low end out of it. The first speaker blew after about 3 years of hard use -- turned out there was a cracked solder joint before it blew, so the speaker itself might not even be to blame. But most importantly - excellent sound, full and rugged enough to drive a rock duo for years!

Musical Background:

Regularly gigging multi-instrumentalist for 5+ years

Musical Style:

Rock, Funk, Blues, Afro-Beat
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