Speaker - Jensen® Vintage Alnico, 12", P12R, 25W
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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:
Type:
RoHS Compliant
Accessory Items:
| Impedance | Our Part Number | UPC/EAN | Jensen Part Number |
|---|---|---|---|
| 16 Ω | P-A-P12R-16 | 8034028640322 | ZJ06070 |
| 8 Ω | P-A-P12R-8 | 8034028640339 | ZJ06080 |
| Basket Material | Pressed Sheet Steel | ||
| Cone Material | Paper | ||
| Depth | 5.4566 in. | ||
| Diameter | 12 in. | ||
| Diaphragm Area (SD) | 8 Ω version | P-A-P12R-8 | 490.90 cm2 |
| 16 Ω version | P-A-P12R-16 | 490.80 cm2 | |
| Dust Dome Material | Solid Paper | ||
| Equivalent Acoustic Volume (VAS) | 8 Ω version | P-A-P12R-8 | 54.00 liters |
| 16 Ω version | P-A-P12R-16 | 72.60 liters | |
| Flux Density | 0.96 T | ||
| Force Factor (BxL) | 8 Ω version | P-A-P12R-8 | 5.53 Wb/m |
| 16 Ω version | P-A-P12R-16 | 6.68 Wb/m | |
| Inner Diameter | 10.9055 in. | ||
| Linear Displacement, maximum (XMAX) | 8 Ω version | P-A-P12R-8 | 1.00 mm |
| 16 Ω version | P-A-P12R-16 | 0.75 mm | |
| Losses Electrical Resistance (RES) | 8 Ω version | P-A-P12R-8 | 39.00 Ω |
| 16 Ω version | P-A-P12R-16 | 58.00 Ω | |
| Magnet Assembly Depth | 1.9488 in. | ||
| Magnet Type | Alnico | ||
| Magnetic Gap Depth | 6.00 mm | ||
| Mechanical Compliance (CMS) | 8 Ω version | P-A-P12R-8 | 157.00 µm/N |
| 16 Ω version | P-A-P12R-16 | 214.00 µm/N | |
| Mechanical Moving Mass (MMS) | 8 Ω version | P-A-P12R-8 | 25.20 g |
| 16 Ω version | P-A-P12R-16 | 19.90 g | |
| Mechanical Q Factor (QMS) | 8 Ω version | P-A-P12R-8 | 13.07 |
| 16 Ω version | P-A-P12R-16 | 12.53 | |
| Mounting Hole Bolt Circle Diameter | 11.5551 in. | ||
| Mounting Hole Diameter | 0.2559 in. | ||
| Musical Power | 50.00 W | ||
| Nominal Overall Diameter | 307.00 mm | ||
| Nominal Voice Coil Diameter | 25.00 mm | ||
| Outer Diameter | 12.0275 in. | ||
| Rated Power | 25.00 W | ||
| Reference Efficiency (nO) | 8 Ω version | P-A-P12R-8 | 1.56 % |
| 16 Ω version | P-A-P12R-16 | 1.19 % | |
| Resonance Frequency (ƒS) | 8 Ω version | P-A-P12R-8 | 80.00 Hz |
| 16 Ω version | P-A-P12R-16 | 77.00 Hz | |
| Sensitivity @ 1W, 1m | 8 Ω version | P-A-P12R-8 | 93.70 dB |
| 16 Ω version | P-A-P12R-16 | 94.00 dB | |
| Surround Material | Integrated Paper | ||
| Surround Treatment | No | ||
| Total Q Factor (QTS) | 8 Ω version | P-A-P12R-8 | 2.10 |
| 16 Ω version | P-A-P12R-16 | 2.20 | |
| Voice Coil DC Resistance (Re) | 8 Ω version | P-A-P12R-8 | 6.05 Ω |
| 16 Ω version | P-A-P12R-16 | 12.00 Ω | |
| Voice Coil Diameter | 1 in. | ||
| Voice Coil Former | Kapton | ||
| Voice Coil Inductance @ 1 kHZ (LE) | 8 Ω version | P-A-P12R-8 | 0.50 mH |
| 16 Ω version | P-A-P12R-16 | 0.84 mH | |
| Voice Coil Winding Depth | 8.00 mm | ||
| Voice Coil Winding Type | Copper |
| Packaging Dimensions | 13.3858 in. × 13.3858 in. × 7.874 in. | |
| Weight (Packaging) | 4.55 lbs. |
| P-A-P12R-16 - 16 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 5.4566 in. | |
| Diameter | 12 in. | |
| Diaphragm Area (SD) | 490.80 cm2 | |
| Dust Dome Material | Solid Paper | |
| Equivalent Acoustic Volume (VAS) | 72.60 liters | |
| Flux Density | 0.96 T | |
| Force Factor (BxL) | 6.68 Wb/m | |
| Inner Diameter | 10.9055 in. | |
| Linear Displacement, maximum (XMAX) | 0.75 mm | |
| Losses Electrical Resistance (RES) | 58.00 Ω | |
| Magnet Assembly Depth | 1.9488 in. | |
| Magnet Type | Alnico | |
| Magnetic Gap Depth | 6.00 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 Diameter | 11.5551 in. | |
| Mounting Hole Diameter | 0.2559 in. | |
| Musical Power | 50.00 W | |
| Nominal Overall Diameter | 307.00 mm | |
| Nominal Voice Coil Diameter | 25.00 mm | |
| Outer Diameter | 12.0275 in. | |
| Rated Power | 25.00 W | |
| Reference Efficiency (nO) | 1.19 % | |
| Resonance Frequency (ƒS) | 77.00 Hz | |
| Sensitivity @ 1W, 1m | 94.00 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | No | |
| Total Q Factor (QTS) | 2.20 | |
| Voice Coil DC Resistance (Re) | 12.00 Ω | |
| Voice Coil Diameter | 1 in. | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.84 mH | |
| Voice Coil Winding Depth | 8.00 mm | |
| Voice Coil Winding Type | Copper | |
| P-A-P12R-8 - 8 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 5.4566 in. | |
| Diameter | 12 in. | |
| Diaphragm Area (SD) | 490.90 cm2 | |
| Dust Dome Material | Solid Paper | |
| Equivalent Acoustic Volume (VAS) | 54.00 liters | |
| Flux Density | 0.96 T | |
| Force Factor (BxL) | 5.53 Wb/m | |
| Inner Diameter | 10.9055 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 39.00 Ω | |
| Magnet Assembly Depth | 1.9488 in. | |
| Magnet Type | Alnico | |
| Magnetic Gap Depth | 6.00 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 Diameter | 11.5551 in. | |
| Mounting Hole Diameter | 0.2559 in. | |
| Musical Power | 50.00 W | |
| Nominal Overall Diameter | 307.00 mm | |
| Nominal Voice Coil Diameter | 25.00 mm | |
| Outer Diameter | 12.0275 in. | |
| Rated Power | 25.00 W | |
| Reference Efficiency (nO) | 1.56 % | |
| Resonance Frequency (ƒS) | 80.00 Hz | |
| Sensitivity @ 1W, 1m | 93.70 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | No | |
| Total Q Factor (QTS) | 2.10 | |
| Voice Coil DC Resistance (Re) | 6.05 Ω | |
| Voice Coil Diameter | 1 in. | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.50 mH | |
| Voice Coil Winding Depth | 8.00 mm | |
| Voice Coil Winding Type | Copper |
 Specification Sheet | All Models |
 Blues Sound Sample | All Models |
| Clean Sound Sample | All Models |
| Country Sound Sample | All Models |
| Jazz Sound Sample | All Models |
| Metal Sound Sample | All Models |
| Overdriven Sound Sample | All Models |
| Rock Sound Sample | All Models |
 Terminal Dimensions | All Models |
My Project Lists
Specifications, Files, and Documents
Sound Samples:
Blues Sound Sample00:49https://www.cedist.com/sites/default/files/associated_files/p12r_blues.mp3
Clean Sound Sample00:15https://www.cedist.com/sites/default/files/associated_files/p12r_clean.mp3
Country Sound Sample00:35https://www.cedist.com/sites/default/files/associated_files/p12r_country.mp3
Jazz Sound Sample00:43https://www.cedist.com/sites/default/files/associated_files/p12r_jazz.mp3
Metal Sound Sample00:55https://www.cedist.com/sites/default/files/associated_files/p12r_metal.mp3
Overdriven Sound Sample00:16https://www.cedist.com/sites/default/files/associated_files/p12r_overdriven.mp3
Rock Sound Sample00:43https://www.cedist.com/sites/default/files/associated_files/p12r_rock.mp3
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