Aquila® Thunderblack U•BASS® Strings

Model: AQ-TBLK-4


Thunderblack is a set made with three different types of synthetic elastomer. In the third and fourth strings, the density of the elastomeric material is also increased by adding micronized metal iron powder during the extrusion phase.

This technological solution allows for the same working tension to have smaller diameters, greater volume and sustain than any type of polyurethane and silicone rubber strings available on the market. The Thunderblacks ensure fast and stable intonation. Thanks to the metal powder there is also a great slipperiness of the fingers.

*Please note for use on polyurethane string U•BASS® setups, the instrument will need a new, compatible nut to accommodate these strings. Kala Metal Round Wound U•Bass Strings have a lower gauge that is too thin for the nut slots on a U•BASS® pre-fit for Polyurethane strings. This can cause buzzing on open string notes. It's recommended that a nut designed for the round wound strings is used. You can purchase one here: U•BASS TUSQ Nut - 4 String. Please note that a nut swap should always be performed by an experienced instrument technician for best results. Due to the change to a higher tension as well, a truss rod adjustment is also recommended.

**Not for use on California 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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