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.
Mod 12-70
General Characteristics:
| Nominal Overall Diameter | 306 mm | 12 in |
| Nominal Voice Coil Diameter | 38 mm | 1.5 in |
| Magnet Weight | 640 g | 22.5 oz |
| Overall Weight | 5.30 lbs | |
| Flux Density | 1.16 T |
Thiele-Small Parameters:
| Voice Coil DC Resistance | RE | 5.30 Ω |
| Resonance Frequency | ƒS | 78 Hz |
| Mechanical Q Factor | QMS | 19.00 |
| Electrical Q Factor | QES | 1.15 |
| Total Q Factor | QTS | 1.08 |
| Mechanical Moving Mass | MMS | 30.5 g |
| Mechanical Compliance | CMS | 138 µm/N |
| Force Factor | BxL | 8.40 Wb/m |
| Equivalent Acoustic Volume | VAS | 46.7 lt. |
| Maximum Linear Displacement | XMAX | 1.5 mm |
| Reference Efficiency | nO | 1.82 % |
| Diaphragm Area | SD | 491.0 cm2 |
| Losses Electrical Resistance | RES | 90 Ω |
| Voice Coil Inductance @ 1kHz | LE | 0.58 mH |
Constructive Characteristics:
| Magnet | Ferrite |
| Voice Coil Winding | Copper |
| Voice Coil Former | Epotex |
| Cone | Paper |
| Surround | Integrated Paper |
| Dust Dome | Non-treated Cloth |
| Basket | Pressed Sheet Steel |
Electrical Characteristics:
| Nominal Impedance | 8 Ω |
| Rated Power | 70 W |
| Musical Power | 140 W |
| Sensitivity@1W,1m | 96.3 dB |
MOD12-70
12", 70 watts, 4Ω/8Ω/16Ω
The MOD12-70 is loud, dynamic, and well defined. It has a defined warm crunch response to overdrive distortion.
Sound Samples:
Specification Sheet:
Product Dimensions:
Frequency Response Chart:
User Reviews
Click Here to submit your own review for Jensen Speakers!
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