Mod 8-20

General Characteristics for 4Ω
Nominal Overall Diameter207 mm.8 in.
Nominal Voice Coil Diameter25 mm.1.00 in.
Magnet Weight160 g5.60 oz
Overall Weight1.50 lbs
Flux Density1.00 T
Thiele-Small Parameters for 4Ω
Voice Coil DC ResistanceRE3.26 Ω
Resonance FrequencyƒS111.2 Hz
Mechanical Q FactorQMS19.23
Electrical Q FactorQES1.91
Total Q FactorQTS1.74
Mechanical Moving MassMMS10.1 g
Mechanical ComplianceCMS204 µm/N
Force FactorBxL3.47 Wb/m
Equivalent Acoustic VolumeVAS13.1 lt.
Maximum Linear DisplacementXMAX±1.50 mm
Reference EfficiencynO0.90 %
Diaphragm AreaSD213.8 cm2
Losses Electrical ResistanceRES0.0 Ω
Voice Coil Inductance @ 1kHzLE0.30 mH
Constructive Characteristics for 4Ω
MagnetFerrite
Voice Coil WindingCopper
Voice Coil FormerEpotex
Cone MaterialPaper
Surround MaterialIntegrated Paper
Dust Dome MaterialNon-treated Cloth
Basket MaterialPressed Sheet Steel
Electrical Characteristics for 4Ω
Nominal Impedance4 Ω
Rated Power20 W
Musical Power40 W
Sensitivity@1W,1m93.2 dB
General Characteristics for 8Ω
Nominal Overall Diameter207 mm.8 in.
Nominal Voice Coil Diameter25 mm.1.00 in.
Magnet Weight160 g5.60 oz
Overall Weight1.50 lbs
Flux Density1.00 T
Thiele-Small Parameters for 8Ω
Voice Coil DC ResistanceRE6.50 Ω
Resonance FrequencyƒS119.4 Hz
Mechanical Q FactorQMS19.88
Electrical Q FactorQES2.52
Total Q FactorQTS2.24
Mechanical Moving MassMMS10.3 g
Mechanical ComplianceCMS173 µm/N
Force FactorBxL4.45 Wb/m
Equivalent Acoustic VolumeVAS11.1 lt.
Maximum Linear DisplacementXMAX±1.00 mm
Reference EfficiencynO0.72 %
Diaphragm AreaSD213.8 cm2
Losses Electrical ResistanceRES0.0 Ω
Voice Coil Inductance @ 1kHzLE0.40 mH
Constructive Characteristics for 8Ω
MagnetFerrite
Voice Coil WindingCopper
Voice Coil FormerEpotex
Cone MaterialPaper
Surround MaterialIntegrated Paper
Dust Dome MaterialNon-treated Cloth
Basket MaterialPressed Sheet Steel
Electrical Characteristics for 8Ω
Nominal Impedance8 Ω
Rated Power20 W
Musical Power40 W
Sensitivity@1W,1m93.2 dB
MOD8-20
8"
,
20 watts
  • Ohms:

Straightforward tone with smooth highs and more predominant lows. It responds to overdrive distortion with a mellow fuzz overdrive.

Lows:Mids:Highs:Overdrive:
Loose/FatFirmSmoothSmooth
Straightforward tone with smooth highs and more predominant lows. Responds to overdrive distortion with a mellow fuzz overdrive.
Bright
Sound Samples:
Clean Sound Sample00:18https://www.jensentone.com/sites/jensentone.com/files/sound_samples/mod8-20_clean_0.mp3
Overdriven Sound Sample00:18https://www.jensentone.com/sites/jensentone.com/files/sound_samples/mod8-20_overdriven_0.mp3
Blues Sound Sample00:49https://www.jensentone.com/sites/jensentone.com/files/sound_samples/mod8-20_blues.mp3
Country Sound Sample00:35https://www.jensentone.com/sites/jensentone.com/files/sound_samples/mod8-20_country.mp3
Jazz Sound Sample00:44https://www.jensentone.com/sites/jensentone.com/files/sound_samples/mod8-20_jazz.mp3
Metal Sound Sample00:55https://www.jensentone.com/sites/jensentone.com/files/sound_samples/mod8-20_metal.mp3
Rock Sound Sample00:43https://www.jensentone.com/sites/jensentone.com/files/sound_samples/mod8-20_rock.mp3
Having trouble playing our sound samples? Click here to access the files directly.
Frequency Response Charts:

User Reviews

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I installed a Mod 12-70 in my Lab L3 and i was immediately knocked out by the sound - the low end was tighter and the mids were more complex. Clean or distorted it was the sound I had wanted for years. On a whim I installed a Mod 8-20 in an old Peavey Rage 158 - the sound opened up with more lows and mids and volume. This small 15W amp is now my go-to for small rooms and recording.

I bought four 8" MOD speakers for a 4x8” cab project I was working on. I’m really happy with the speakers. They were easy to install and sound really good paired with a Fender Pro Jr as the head. Congrats on a great product.