Speaker - Jensen® Vintage Ceramic, 8", C8R, 25W
The C8R is the little gem in the Jensen Vintage series. It delivers a solid compact tone that defies its size. Extremely versatile, it finds application in small home and student amplifiers; but with a microphone in front, it is capable of transferring on tape some of the biggest tones ever. Not by chance, the vintage Fender® Champ® amplifiers produced with the C8R speaker are treasured by many players as a great studio tool.
Guitarist Description: Crystal clear tone with brightly shining highs. Responds to overdrive distortion with a bright fuzz lead voice.
- Lows: Tight
- Mids: Aggressive
- Highs: Bright
- Overdrive: Edgy
For more information about our Jensen® speakers, see our tech corner article on Jensen Speakers.
SKU:
P-A-C8R
Item ID:
001925
Brand:
JensenJensen VintageCeramic
Magnet Type:
Size:
Type:
RoHS Compliant
| Impedance | Our Part Number | UPC/EAN | Jensen Part Number |
|---|---|---|---|
| 4 Ω | P-A-C8R-4 | 8034028640049 | ZJ04030 |
| 8 Ω | P-A-C8R-8 | 8034028640032 | ZJ04020 |
| Basket Material | Pressed Sheet Steel | ||
| Cone Material | Paper | ||
| Depth | 3.0629 in. | ||
| Diameter | 8 in. | ||
| Diaphragm Area (SD) | 213.80 cm2 | ||
| Dust Dome Material | Solid Paper | ||
| Equivalent Acoustic Volume (VAS) | 4 Ω version | P-A-C8R-4 | 10.30 liters |
| 8 Ω version | P-A-C8R-8 | 11.40 liters | |
| Flux Density | 1.00 T | ||
| Force Factor (BxL) | 4 Ω version | P-A-C8R-4 | 3.76 Wb/m |
| 8 Ω version | P-A-C8R-8 | 4.70 Wb/m | |
| Inner Diameter | 7.0275 in. | ||
| Linear Displacement, maximum (XMAX) | 1.00 mm | ||
| Losses Electrical Resistance (RES) | 4 Ω version | P-A-C8R-4 | 19.00 Ω |
| 8 Ω version | P-A-C8R-8 | 37.00 Ω | |
| Magnet Assembly Depth | 0.8976 in. | ||
| Magnet Assembly Diameter | 3.3858 in. | ||
| Magnet Type | Ferrite | ||
| Magnetic Gap Depth | 6.00 mm | ||
| Mechanical Compliance (CMS) | 4 Ω version | P-A-C8R-4 | 161.00 µm/N |
| 8 Ω version | P-A-C8R-8 | 176.00 µm/N | |
| Mechanical Moving Mass (MMS) | 4 Ω version | P-A-C8R-4 | 9.20 g |
| 8 Ω version | P-A-C8R-8 | 9.00 g | |
| Mechanical Q Factor (QMS) | 4 Ω version | P-A-C8R-4 | 9.65 |
| 8 Ω version | P-A-C8R-8 | 10.29 | |
| 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-C8R-4 | 1.34 % |
| 8 Ω version | P-A-C8R-8 | 1.03 % | |
| Resonance Frequency (ƒS) | 4 Ω version | P-A-C8R-4 | 131.00 Hz |
| 8 Ω version | P-A-C8R-8 | 126.00 Hz | |
| Sensitivity @ 1W, 1m | 4 Ω version | P-A-C8R-4 | 94.40 dB |
| 8 Ω version | P-A-C8R-8 | 93.00 dB | |
| Surround Material | Integrated Paper | ||
| Surround Treatment | Yes | ||
| Total Q Factor (QTS) | 4 Ω version | P-A-C8R-4 | 1.42 |
| 8 Ω version | P-A-C8R-8 | 1.80 | |
| Voice Coil DC Resistance (Re) | 4 Ω version | P-A-C8R-4 | 3.00 Ω |
| 8 Ω version | P-A-C8R-8 | 6.73 Ω | |
| Voice Coil Diameter | 1 in. | ||
| Voice Coil Former | Kapton | ||
| Voice Coil Inductance @ 1 kHZ (LE) | 4 Ω version | P-A-C8R-4 | 0.22 mH |
| 8 Ω version | P-A-C8R-8 | 0.43 mH | |
| Voice Coil Winding Depth | 4.00 mm | ||
| Voice Coil Winding Type | Copper | ||
| Packaging Dimensions | 9.1 in. × 9.1 in. × 5.55 in. | ||
| Weight (Packaging) | 2.8506 lbs. | ||
| P-A-C8R-4 - 4 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 3.0629 in. | |
| Diameter | 8 in. | |
| Diaphragm Area (SD) | 213.80 cm2 | |
| Dust Dome Material | Solid Paper | |
| Equivalent Acoustic Volume (VAS) | 10.30 liters | |
| Flux Density | 1.00 T | |
| Force Factor (BxL) | 3.76 Wb/m | |
| Inner Diameter | 7.0275 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 19.00 Ω | |
| Magnet Assembly Depth | 0.8976 in. | |
| Magnet Assembly Diameter | 3.3858 in. | |
| Magnet Type | Ferrite | |
| Magnetic Gap Depth | 6.00 mm | |
| Mechanical Compliance (CMS) | 161.00 µm/N | |
| Mechanical Moving Mass (MMS) | 9.20 g | |
| Mechanical Q Factor (QMS) | 9.65 | |
| 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) | 1.34 % | |
| Resonance Frequency (ƒS) | 131.00 Hz | |
| Sensitivity @ 1W, 1m | 94.40 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor (QTS) | 1.42 | |
| Voice Coil DC Resistance (Re) | 3.00 Ω | |
| Voice Coil Diameter | 1 in. | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.22 mH | |
| Voice Coil Winding Depth | 4.00 mm | |
| Voice Coil Winding Type | Copper | |
| P-A-C8R-8 - 8 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 3.0629 in. | |
| Diameter | 8 in. | |
| Diaphragm Area (SD) | 213.80 cm2 | |
| Dust Dome Material | Solid Paper | |
| Equivalent Acoustic Volume (VAS) | 11.40 liters | |
| Flux Density | 1.00 T | |
| Force Factor (BxL) | 4.70 Wb/m | |
| Inner Diameter | 7.0275 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 37.00 Ω | |
| Magnet Assembly Depth | 0.8976 in. | |
| Magnet Assembly Diameter | 3.3858 in. | |
| Magnet Type | Ferrite | |
| Magnetic Gap Depth | 6.00 mm | |
| Mechanical Compliance (CMS) | 176.00 µm/N | |
| Mechanical Moving Mass (MMS) | 9.00 g | |
| Mechanical Q Factor (QMS) | 10.29 | |
| 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) | 1.03 % | |
| Resonance Frequency (ƒS) | 126.00 Hz | |
| Sensitivity @ 1W, 1m | 93.00 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor (QTS) | 1.80 | |
| Voice Coil DC Resistance (Re) | 6.73 Ω | |
| Voice Coil Diameter | 1 in. | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.43 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.tubesandmore.com/sites/default/files/associated_files/c8r_blues.mp3
Clean Sound Sample00:18https://www.tubesandmore.com/sites/default/files/associated_files/c8r_clean.mp3
Country Sound Sample00:35https://www.tubesandmore.com/sites/default/files/associated_files/c8r_country.mp3
Jazz Sound Sample00:43https://www.tubesandmore.com/sites/default/files/associated_files/c8r_jazz.mp3
Metal Sound Sample00:53https://www.tubesandmore.com/sites/default/files/associated_files/c8r_metal.mp3
Overdriven Sound Sample00:18https://www.tubesandmore.com/sites/default/files/associated_files/c8r_overdriven.mp3
Rock Sound Sample00:41https://www.tubesandmore.com/sites/default/files/associated_files/c8r_rock.mp3
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Terminal Dimensions Questions? Contact us at [email protected], or give us a call at 480-820-5411
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Product Reviews
I received my order in a timely manner, packing was good, the speakers are with my amp tech being installed, at this time, so I can’t say how they sound , I believe it’s going to be killer!
I was a little hesitant that this speaker would work for my unique application. I'm not using it for a guitar amp but as a replacement speaker for a 1948 AM/FM/Phono radio that the original 10" speaker was missing. It turns out this speaker works great. I went with the 8" version instead of a bigger one to get a greater frequency range and am glad I did.
This thing rocks even though the tube amp is only putting out 5w.
Sounded great in a 1973 Bronco I installed it in. 4 ohm version.
I used two of these speakers (8 ohm in parallel) in a clone of the Magnatone Melodier 109 that I built. They turned out to be a perfect match for the self-split push-pull circuit. They have a rich sound when played clean, and they handle the output-tube distortion that the amp produces beautifully. Absolutely perfect for blues. And the price is right! My go-to 8" speaker.