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Tensor Bass Guitars Announces 4-String Line of Custom Basses

Tensor Bass Guitars Announces 4-String Line of Custom Basses

Tensor Bass Guitars Announces 4-String Line of Custom Basses…

Tensor Inc. announced today availability of all of its custom bass guitars in 4 string configurations. This compliments Tensor’s existing lineup of 5 string bass guitars. All of the new 4 string models come equipped with Tensor’s patent pending Force BalanceTM technology. The Force BalanceTM system in Tensor Basses replaces the conventional truss rod found in most all bass guitar necks. The Force BalanceTM system utilizes the string tension to generate the appropriate counter tension on the neck. Since the counter tension is directly proportional to the string tension the two forces balance each other under a wide range of varying conditions. The effects of temperature, deformation and stress relaxation are dramatically reduced resulting in a more stable neck assembly.

Tensor Bass Guitars Announces 4-String Line of Custom Basses-3

The Force BalanceTM system has an adjustment feature which introduces a small positive or negative force to the system to allow for precise adjustment of neck bow to accommodate the players preference. The adjustment system uses constant force compression springs which are not susceptible to the variations found in the conventional truss rod adjustment mechanism.

Tensor Bass Guitars Announces 4-String Line of Custom Basses-4

Along with the addition of the 4 string lineup Tensor has added several new designs to its bass lineup. Tensor will be displaying the new lineup at the Summer NAMM Show in Nashville next month in booth #1229. For more information visit Tensor’s website at

About Tensor

Our mission at Tensor is to build a great looking, playing and sounding bass guitar. All of our basses are made in our shop in Southern California. We use domestic sources for our wood and hardware. Our custom designed pickguards are manufactured by us using a proprietary laminating process. Our finishes are done by local artisans who specialize in high quality paint work. We use only high quality electronic components. All of our bass guitars employ the patent pending Force BalanceTM counter tensioning system.



  1. John Reed

    June 25, 2015 at 1:30 pm

    As the owner of Tom Lanni’s first prototype four string bass, I can’t say enough about its performance and beauty. The John Reed Custom Ultra light Classic four string has been the object of curiosity and inquiry at each of my gigs. “wow! what kind of bass is that?”
    I’ll be playing my custom model at the Tensor booth in Nashville at Summer NAMM. Come by and check these instruments out! You’ll be glad you did!

  2. Steven Steward

    March 29, 2016 at 2:22 pm

    I just played one (retro model, I think) at village music in Big Bear, Ca. It was super interesting. Very very light, good response to different types of attack and overall it sounds really good. Played it through an older amped combo set all flat. I was able to get lots of good tones from it with just the passive controls. The action was a bit high for my taste but it didn’t stop me from enjoying the bass. After reading through the very nice pamphlet, I learned that even though it’s self adjusting, you can give it some suggestion as to where your perfect sweet spot is with the action. Overall, I think it’s a really good, solid, long term bass. If I had the bread, or the spread, I’d own one and be proud of it.

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