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Speaker - Jensen® MOD®, 8", MOD8-20, 20W
The Mod 8-20 is a 8" ferrite speaker with 20 watts of power. Straightforward tone with smooth highs and more predominant lows. It responds to overdrive distortion with a mellow fuzz overdrive.
Guitarist Description: Straightforward tone with smooth highs and more predominant lows. Responds to overdrive distortion with a mellow fuzz overdrive.
Bassist Description: Bright
- Lows: Loose/Fat
- Mids: Firm
- Highs: Smooth
- Overdrive: Smooth
For more information about our Jensen® speakers, see our tech corner article on Jensen Speakers.
RoHS Compliant
| Impedance | Our Part Number | UPC/EAN |
|---|---|---|
| 4 Ω | P-A-MOD8-20-4 | 8034028640070 |
| 8 Ω | P-A-MOD8-20-8 | 8034028640087 |
| Basket Material | Pressed Sheet Steel | ||
| Cone Material | Paper | ||
| Depth | 2.874 in. | ||
| Diameter | 8 in. | ||
| Diaphragm Area (SD) | 213.80 cm2 | ||
| Dust Dome Material | Non-treated Cloth | ||
| Equivalent Acoustic Volume (VAS) | 4 Ω version | P-A-MOD8-20-4 | 13.10 liters |
| 8 Ω version | P-A-MOD8-20-8 | 11.10 liters | |
| Flux Density | 1.00 T | ||
| Force Factor (BxL) | 4 Ω version | P-A-MOD8-20-4 | 3.47 Wb/m |
| 8 Ω version | P-A-MOD8-20-8 | 4.45 Wb/m | |
| Inner Diameter | 7.0275 in. | ||
| Linear Displacement, maximum (XMAX) | 4 Ω version | P-A-MOD8-20-4 | 1.50 mm |
| 8 Ω version | P-A-MOD8-20-8 | 1.00 mm | |
| Losses Electrical Resistance (RES) | 4 Ω version | P-A-MOD8-20-4 | 32.80 Ω |
| 8 Ω version | P-A-MOD8-20-8 | 51.10 Ω | |
| Magnet Assembly Diameter | 2.8346 in. | ||
| Magnet Type | Ferrite | ||
| Mechanical Compliance (CMS) | 4 Ω version | P-A-MOD8-20-4 | 204.00 µm/N |
| 8 Ω version | P-A-MOD8-20-8 | 173.00 µm/N | |
| Mechanical Moving Mass (MMS) | 4 Ω version | P-A-MOD8-20-4 | 10.10 g |
| 8 Ω version | P-A-MOD8-20-8 | 10.30 g | |
| Mechanical Q Factor (QMS) | 4 Ω version | P-A-MOD8-20-4 | 19.23 |
| 8 Ω version | P-A-MOD8-20-8 | 19.88 | |
| Mounting Hole Bolt Circle Diameter | 7.7559 in. | ||
| Mounting Hole Diameter | 0.1968 in. | ||
| Musical Power | 40.00 W | ||
| Nominal Overall Diameter | 207.00 mm | ||
| Nominal Voice Coil Diameter | 25.00 mm | ||
| Outer Diameter | 8.1496 in. | ||
| Rated Power | 20.00 W | ||
| Reference Efficiency (nO) | 4 Ω version | P-A-MOD8-20-4 | 0.90 % |
| 8 Ω version | P-A-MOD8-20-8 | 0.72 % | |
| Resonance Frequency (ƒS) | 4 Ω version | P-A-MOD8-20-4 | 111.20 Hz |
| 8 Ω version | P-A-MOD8-20-8 | 119.40 Hz | |
| Sensitivity @ 1W, 1m | 93.20 dB | ||
| Surround Material | Integrated Paper | ||
| Total Q Factor (QTS) | 4 Ω version | P-A-MOD8-20-4 | 1.74 |
| 8 Ω version | P-A-MOD8-20-8 | 2.24 | |
| Voice Coil DC Resistance (Re) | 4 Ω version | P-A-MOD8-20-4 | 3.26 Ω |
| 8 Ω version | P-A-MOD8-20-8 | 6.50 Ω | |
| Voice Coil Diameter | 1 in. | ||
| Voice Coil Former | Epotex | ||
| Voice Coil Inductance @ 1 kHZ (LE) | 4 Ω version | P-A-MOD8-20-4 | 0.30 mH |
| 8 Ω version | P-A-MOD8-20-8 | 0.40 mH | |
| Voice Coil Winding Type | Copper |
| Packaging Dimensions | 9.055 in. × 9.055 in. × 5.511 in. | |
| Weight (Packaging) | 1.95 lbs. |
| P-A-MOD8-20-4 - 4 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 2.874 in. | |
| Diameter | 8 in. | |
| Diaphragm Area (SD) | 213.80 cm2 | |
| Dust Dome Material | Non-treated Cloth | |
| Equivalent Acoustic Volume (VAS) | 13.10 liters | |
| Flux Density | 1.00 T | |
| Force Factor (BxL) | 3.47 Wb/m | |
| Inner Diameter | 7.0275 in. | |
| Linear Displacement, maximum (XMAX) | 1.50 mm | |
| Losses Electrical Resistance (RES) | 32.80 Ω | |
| Magnet Assembly Diameter | 2.8346 in. | |
| Magnet Type | Ferrite | |
| Mechanical Compliance (CMS) | 204.00 µm/N | |
| Mechanical Moving Mass (MMS) | 10.10 g | |
| Mechanical Q Factor (QMS) | 19.23 | |
| Mounting Hole Bolt Circle Diameter | 7.7559 in. | |
| Mounting Hole Diameter | 0.1968 in. | |
| Musical Power | 40.00 W | |
| Nominal Overall Diameter | 207.00 mm | |
| Nominal Voice Coil Diameter | 25.00 mm | |
| Outer Diameter | 8.1496 in. | |
| Rated Power | 20.00 W | |
| Reference Efficiency (nO) | 0.90 % | |
| Resonance Frequency (ƒS) | 111.20 Hz | |
| Sensitivity @ 1W, 1m | 93.20 dB | |
| Surround Material | Integrated Paper | |
| Total Q Factor (QTS) | 1.74 | |
| Voice Coil DC Resistance (Re) | 3.26 Ω | |
| Voice Coil Diameter | 1 in. | |
| Voice Coil Former | Epotex | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.30 mH | |
| Voice Coil Winding Type | Copper | |
| P-A-MOD8-20-8 - 8 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Depth | 2.874 in. | |
| Diameter | 8 in. | |
| Diaphragm Area (SD) | 213.80 cm2 | |
| Dust Dome Material | Non-treated Cloth | |
| Equivalent Acoustic Volume (VAS) | 11.10 liters | |
| Flux Density | 1.00 T | |
| Force Factor (BxL) | 4.45 Wb/m | |
| Inner Diameter | 7.0275 in. | |
| Linear Displacement, maximum (XMAX) | 1.00 mm | |
| Losses Electrical Resistance (RES) | 51.10 Ω | |
| Magnet Assembly Diameter | 2.8346 in. | |
| Magnet Type | Ferrite | |
| Mechanical Compliance (CMS) | 173.00 µm/N | |
| Mechanical Moving Mass (MMS) | 10.30 g | |
| Mechanical Q Factor (QMS) | 19.88 | |
| Mounting Hole Bolt Circle Diameter | 7.7559 in. | |
| Mounting Hole Diameter | 0.1968 in. | |
| Musical Power | 40.00 W | |
| Nominal Overall Diameter | 207.00 mm | |
| Nominal Voice Coil Diameter | 25.00 mm | |
| Outer Diameter | 8.1496 in. | |
| Rated Power | 20.00 W | |
| Reference Efficiency (nO) | 0.72 % | |
| Resonance Frequency (ƒS) | 119.40 Hz | |
| Sensitivity @ 1W, 1m | 93.20 dB | |
| Surround Material | Integrated Paper | |
| Total Q Factor (QTS) | 2.24 | |
| Voice Coil DC Resistance (Re) | 6.50 Ω | |
| Voice Coil Diameter | 1 in. | |
| Voice Coil Former | Epotex | |
| Voice Coil Inductance @ 1 kHZ (LE) | 0.40 mH | |
| 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.amplifiedparts.com/sites/default/files/associated_files/mod8-20_blues.mp3
Clean Sound Sample00:18https://www.amplifiedparts.com/sites/default/files/associated_files/mod8-20_clean.mp3
Country Sound Sample00:35https://www.amplifiedparts.com/sites/default/files/associated_files/mod8-20_country.mp3
Jazz Sound Sample00:44https://www.amplifiedparts.com/sites/default/files/associated_files/mod8-20_jazz.mp3
Metal Sound Sample00:55https://www.amplifiedparts.com/sites/default/files/associated_files/mod8-20_metal.mp3
Overdriven Sound Sample00:18https://www.amplifiedparts.com/sites/default/files/associated_files/mod8-20_overdriven.mp3
Rock Sound Sample00:43https://www.amplifiedparts.com/sites/default/files/associated_files/mod8-20_rock.mp3
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Terminal Dimensions Questions and Answers
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1 answers
I have a Roland Cube Street ex portable amp and i have red that it would improve the quality of the lows if i fit Mod 8- 20 s speakers. I only play an acoustic guitar and use a mic through the amp could you please advise . many thanks Dave
Asked by Anonymous on March 27th, 2020.
March 27th, 2020
Staff Member
Speaker tone is subjective, so while some might agree with that statement, we can't guarantee you will have the same experience. We do feel, however, that these are great speakers in a number of applications.
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The Jensen MOD 8" 20 Watt 4 Ohm Speaker Works very well in a Dean Markley K-20B Bass amp.