Mod 12-70

  • 16Ω
General Characteristics for 4Ω
Nominal Overall Diameter306 mm.12 in.
Nominal Voice Coil Diameter38 mm.1.50 in.
Magnet Weight640 g22.50 oz
Overall Weight5.30 lbs
Flux Density1.16 T
Thiele-Small Parameters for 4Ω
Voice Coil DC ResistanceRE3.50 Ω
Resonance FrequencyƒS74.0 Hz
Mechanical Q FactorQMS6.97
Electrical Q FactorQES0.82
Total Q FactorQTS0.74
Mechanical Moving MassMMS29.0 g
Mechanical ComplianceCMS158 µm/N
Force FactorBxL7.72 Wb/m
Equivalent Acoustic VolumeVAS53.6 lt.
Maximum Linear DisplacementXMAX± 1.50 mm
Reference EfficiencynO2.57 %
Diaphragm AreaSD490.9 cm2
Losses Electrical ResistanceRES31.0 Ω
Voice Coil Inductance @ 1kHzLE0.43 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 Power70 W
Musical Power140 W
Sensitivity@1W,1m99.5 dB
General Characteristics for 8Ω
Nominal Overall Diameter306 mm.12 in.
Nominal Voice Coil Diameter38 mm.1.50 in.
Magnet Weight640 g22.50 oz
Overall Weight5.30 lbs
Flux Density1.16 T
Thiele-Small Parameters for 8Ω
Voice Coil DC ResistanceRE5.30 Ω
Resonance FrequencyƒS78.0 Hz
Mechanical Q FactorQMS19.00
Electrical Q FactorQES1.15
Total Q FactorQTS1.08
Mechanical Moving MassMMS30.5 g
Mechanical ComplianceCMS138 µm/N
Force FactorBxL8.40 Wb/m
Equivalent Acoustic VolumeVAS46.7 lt.
Maximum Linear DisplacementXMAX± 1.50 mm
Reference EfficiencynO1.82 %
Diaphragm AreaSD491.0 cm2
Losses Electrical ResistanceRES90.0 Ω
Voice Coil Inductance @ 1kHzLE0.58 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 Power70 W
Musical Power140 W
Sensitivity@1W,1m96.3 dB
General Characteristics for 16Ω
Nominal Overall Diameter306 mm.12 in.
Nominal Voice Coil Diameter38 mm.1.50 in.
Magnet Weight640 g22.50 oz
Overall Weight5.30 lbs
Flux Density1.16 T
Thiele-Small Parameters for 16Ω
Voice Coil DC ResistanceRE12.00 Ω
Resonance FrequencyƒS83.0 Hz
Mechanical Q FactorQMS7.84
Electrical Q FactorQES1.19
Total Q FactorQTS1.04
Mechanical Moving MassMMS30.3 g
Mechanical ComplianceCMS125 µm/N
Force FactorBxL12.56 Wb/m
Equivalent Acoustic VolumeVAS42.4 lt.
Maximum Linear DisplacementXMAX± 1.50 mm
Reference EfficiencynO1.88 %
Diaphragm AreaSD490.9 cm2
Losses Electrical ResistanceRES80.0 Ω
Voice Coil Inductance @ 1kHzLE1.00 mH
Constructive Characteristics for 16Ω
MagnetFerrite
Voice Coil WindingCopper
Voice Coil FormerEpotex
Cone MaterialPaper
Surround MaterialIntegrated Paper
Dust Dome MaterialNon-treated Cloth
Basket MaterialPressed Sheet Steel
Electrical Characteristics for 16Ω
Nominal Impedance16 Ω
Rated Power70 W
Musical Power140 W
Sensitivity@1W,1m96.0 dB
MOD12-70
12"
,
70 watts
  • Ohms:
  • 16Ω

The MOD12-70 is loud, dynamic, and well defined. It has a defined warm crunch response to overdrive distortion.

Lows:Mids:Highs:Overdrive:
TightSubduedBrightEdgy
Loud, dynamic, and well defined. Has a defined warm crunch response to overdrive distortion
Straightforward, bottom-heavy punch

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.

- Matt Richards

I've been playing guitar for nearly 50 years and designing and building speakers systems for musicians for more then 40 years. I bought a new Trace Elliot Bass amp a few years back that had a Jensen MOD12-70. It ended up in my Fender Deluxe, exactly the sound I've been searching for for years. Now I've got another MOD12-70 and P12Q, they make all other speakers sound muddy (no not Mr. Waters). All my amps are being changed to Jensen. If it ain't broke don't fix it.

- Reinhard in Gehrden, Germany

I just want to say that the pair of 12" MODS I bought and installed in an older Kustom cabinet sound fantastic. I have used many Jensen products over the years and they have always been my first choice. The reason is simply - they are the best. In my opinion anyhow. I have never been dissapointed with any Jensen speaker I have ever had. You can hand them a hefty beating and they hold up well. They will remain my first choice.

- William in Benton, KY

I've used the Mods. Love the 12 incher. Hope to be able to use more in the future.

- Kelly