Speaker - Jensen® Vintage Alnico, 8", P8R, 25W
One of the archetypical speakers in the range, the P8R has been installed in thousands of Champ and Princeton style amps for decades. Slightly clearer sounding than the C8R, its ceramic cousin, the P8R shines in clean and slightly crunch applications, where the typical chime of the AlNiCo magnets helps the sparkling harmonics to bloom.
Guitarist Description: Warm clean tone with emphasis on the highs. Responds to overdrive distortion with a warm and bright fuzz lead voice.
- Lows: Loose
- Mids: Subdued
- Highs: Bright
- Overdrive: Smooth
For more information about our Jensen® speakers, see our tech corner article on Jensen Speakers.
RoHS Compliant
SKU:
P-A-P8R
Item ID:
001977
Brand:
JensenJensen VintageAlnico
Size:
Type:
Accessory Items:
| Impedance | Our Part Number | UPC/EAN | Jensen Part Number |
|---|---|---|---|
| 4 Ω | P-A-P8R-4 | 8034028640063 | ZJ04050 |
| 8 Ω | P-A-P8R-8 | 8034028640056 | ZJ04040 |
| Basket Material | Pressed Sheet Steel | ||
| Cone Material | Paper | ||
| Depth | 4.1141 in. | ||
| Diameter | 8 in. | ||
| Diaphragm Area (SD) | 213.80 cm2 | ||
| Dust Dome Material | Solid Paper | ||
| Equivalent Acoustic Volume (VAS) | 4 Ω version | P-A-P8R-4 | 10.50 |
| 8 Ω version | P-A-P8R-8 | 10.30 liters | |
| Flux Density | 0.96 T | ||
| Force Factor (BxL) | 4 Ω version | P-A-P8R-4 | 3.72 Wb/m |
| 8 Ω version | P-A-P8R-8 | 3.99 Wb/m | |
| Inner Diameter | 7.0275 in. | ||
| Linear Displacement, maximum (XMAX) | 1.00 mm | ||
| Losses Electrical Resistance (RES) | 4 Ω version | P-A-P8R-4 | 16.00 Ω |
| 8 Ω version | P-A-P8R-8 | 27.00 Ω | |
| Magnet Assembly Depth | 1.9488 in. | ||
| Magnet Type | Alnico | ||
| Magnetic Gap Depth | 6.00 mm | ||
| Mechanical Compliance (CMS) | 4 Ω version | P-A-P8R-4 | 164.00 µm/N |
| 8 Ω version | P-A-P8R-8 | 159.00 µm/N | |
| Mechanical Moving Mass (MMS) | 4 Ω version | P-A-P8R-4 | 9.30 g |
| 8 Ω version | P-A-P8R-8 | 8.80 g | |
| Mechanical Q Factor (QMS) | 8.67 | ||
| Mounting Hole Bolt Circle Diameter | 7.7559 in. | ||
| Mounting Hole Diameter | 0.1968 in. | ||
| Musical Power | 50.00 W | ||
| Nominal Overall Diameter | 207.00 mm | ||
| Nominal Voice Coil Diameter | 25.00 mm | ||
| Outer Diameter | 8.1496 in. | ||
| Rated Power | 25.00 W | ||
| Reference Efficiency (nO) | 4 Ω version | P-A-P8R-4 | 1.27 % |
| 8 Ω version | P-A-P8R-8 | 0.95 % | |
| Resonance Frequency (ƒS) | 4 Ω version | P-A-P8R-4 | 129.00 Hz |
| 8 Ω version | P-A-P8R-8 | 135.00 Hz | |
| Sensitivity @ 1W, 1m | 4 Ω version | P-A-P8R-4 | 94.10 dB |
| 8 Ω version | P-A-P8R-8 | 91.80 dB | |
| Surround Material | Integrated Paper | ||
| Surround Treatment | Yes | ||
| Total Q Factor (QTS) | 4 Ω version | P-A-P8R-4 | 1.43 |
| 8 Ω version | P-A-P8R-8 | 2.28 | |
| Voice Coil DC Resistance (Re) | 4 Ω version | P-A-P8R-4 | 3.00 Ω |
| 8 Ω version | P-A-P8R-8 | 6.60 Ω | |
| Voice Coil Diameter | 1 in. | ||
| Voice Coil Former | Epotex | ||
| Voice Coil Inductance @ 1 kHZ (LE) | 4 Ω version | P-A-P8R-4 | 0.21 mH |
| 8 Ω version | P-A-P8R-8 | 0.36 mH | |
| Voice Coil Winding Depth | 4.00 mm | ||
| Voice Coil Winding Type | Copper |
| Packaging Dimensions | 9.1 in. × 9.1 in. × 6 in. | |
| Weight (Packaging) | 3.1 lbs. |
| P-A-P8R-4 - 4 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 4.1141 in. | |
| Diameter | 8 in. | |
| Diaphragm Area (SD) | 213.80 cm2 | |
| Dust Dome Material | Solid Paper | |
| Equivalent Acoustic Volume (VAS) | 10.50 | |
| Flux Density | 0.96 T | |
| Force Factor (BxL) | 3.72 Wb/m | |
| Inner Diameter | 7.0275 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 16.00 Ω | |
| Magnet Assembly Depth | 1.9488 in. | |
| Magnet Type | Alnico | |
| Magnetic Gap Depth | 6.00 mm | |
| Mechanical Compliance (CMS) | 164.00 µm/N | |
| Mechanical Moving Mass (MMS) | 9.30 g | |
| Mechanical Q Factor (QMS) | 8.67 | |
| Mounting Hole Bolt Circle Diameter | 7.7559 in. | |
| Mounting Hole Diameter | 0.1968 in. | |
| Musical Power | 50.00 W | |
| Nominal Overall Diameter | 207.00 mm | |
| Nominal Voice Coil Diameter | 25.00 mm | |
| Outer Diameter | 8.1496 in. | |
| Rated Power | 25.00 W | |
| Reference Efficiency (nO) | 1.27 % | |
| Resonance Frequency (ƒS) | 129.00 Hz | |
| Sensitivity @ 1W, 1m | 94.10 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor (QTS) | 1.43 | |
| Voice Coil DC Resistance (Re) | 3.00 Ω | |
| Voice Coil Diameter | 1 in. | |
| Voice Coil Former | Epotex | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.21 mH | |
| Voice Coil Winding Depth | 4.00 mm | |
| Voice Coil Winding Type | Copper | |
| P-A-P8R-8 - 8 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 4.1141 in. | |
| Diameter | 8 in. | |
| Diaphragm Area (SD) | 213.80 cm2 | |
| Dust Dome Material | Solid Paper | |
| Equivalent Acoustic Volume (VAS) | 10.30 liters | |
| Flux Density | 0.96 T | |
| Force Factor (BxL) | 3.99 Wb/m | |
| Inner Diameter | 7.0275 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 27.00 Ω | |
| Magnet Assembly Depth | 1.9488 in. | |
| Magnet Type | Alnico | |
| Magnetic Gap Depth | 6.00 mm | |
| Mechanical Compliance (CMS) | 159.00 µm/N | |
| Mechanical Moving Mass (MMS) | 8.80 g | |
| Mechanical Q Factor (QMS) | 8.67 | |
| Mounting Hole Bolt Circle Diameter | 7.7559 in. | |
| Mounting Hole Diameter | 0.1968 in. | |
| Musical Power | 50.00 W | |
| Nominal Overall Diameter | 207.00 mm | |
| Nominal Voice Coil Diameter | 25.00 mm | |
| Outer Diameter | 8.1496 in. | |
| Rated Power | 25.00 W | |
| Reference Efficiency (nO) | 0.95 % | |
| Resonance Frequency (ƒS) | 135.00 Hz | |
| Sensitivity @ 1W, 1m | 91.80 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor (QTS) | 2.28 | |
| Voice Coil DC Resistance (Re) | 6.60 Ω | |
| Voice Coil Diameter | 1 in. | |
| Voice Coil Former | Epotex | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.36 mH | |
| Voice Coil Winding Depth | 4.00 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/p8r_blues.mp3
Clean Sound Sample00:15https://www.cedist.com/sites/default/files/associated_files/p8r_clean.mp3
Country Sound Sample00:35https://www.cedist.com/sites/default/files/associated_files/p8r_country.mp3
Jazz Sound Sample00:43https://www.cedist.com/sites/default/files/associated_files/p8r_jazz.mp3
Metal Sound Sample00:53https://www.cedist.com/sites/default/files/associated_files/p8r_metal.mp3
Overdriven Sound Sample00:15https://www.cedist.com/sites/default/files/associated_files/p8r_overdriven.mp3
Rock Sound Sample00:41https://www.cedist.com/sites/default/files/associated_files/p8r_rock.mp3
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