Aquila Flat Spiral U•BASS® Set

Model: AQ-FS-4


Rated 5.0 out of 5 stars
2 Reviews
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These strings are truly innovative for at least two reasons. First, they do not use metals like steel or nickel that are stiff, but instead they use copper that is softer and has higher density and result in richer acoustic performance. In fact, the higher the density, the better the sound. Second, these strings feature a bioplastic monofilament core called 'Sugar', which is exclusively produced by Aquila on a global scale. Sugar has been proven to have superior acoustic performance compared to other plastic materials, as evidenced by laboratory measurements. 

Only compatible with 4-string Acoustic-Electric Kala U•BASS®.

*Modifications to the nut slots and string holes by an experienced instrument technician may be required. As a streamlined alternative to modifications to the existing nut, the Flat Wound U•BASS® Nut by TUSQ® is available for purchase, to be installed by an experienced instrument technician only.  Due to the change to a higher tension as well, a truss rod adjustment is also recommended.

**Not for use on Solid Body U•BASS®

***Modifications performed by the user will void the manufacturer warranty. Please also note that Kala is not responsible for damages to instruments caused by new string installments.

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    Rated 5.0 out of 5 stars
    Based on 2 reviews
    Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    100%would recommend this product
    2 reviews
    • CL
      Christopher L.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      2 weeks ago
      Wonderful strings

      I liked the original steel strings but I knew I needed flat wounds. Turns out what I needed were these strings. Wow what a difference. These are expressive and musical and sounds very acoustic. I love them. And they are great to play. So glad I bought these even though they are a little pricey.

    • GP
      Glenn P.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      8 months ago
      Copper flatwound U-Bass strings

      I mentioned these in my review of the Striped ebony fretless U-Bass I recently purchased. It took a couple of weeks for the strings to settle in and they are now staying in tune longer. I love the look and sound of copper and being flatwound they are a pleasure to play - much easier on your fingers. I’m just wondering if they will turn green in time. 😊

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