Natural feel and bold tone for bass ukulele

Seeking a reliable upgrade for your bass ukulele? The Aquila 165U - Thunderbrown Series, Bass Ukulele / U-Bass String Set - 4-String, 18 - 21 Scale delivers a new take on comfort and sound quality. Suited for 4-string bass ukuleles and U-Bass instruments in the 46–53 cm (18–21") scale range, this model addresses typical issues of elastomer strings and brings upright bass punch to both amplified and acoustic setups.

Plant-derived construction for consistent output

Standout features include a bio-elastomer base paired with a carefully measured micronised copper blend. With this unique recipe, you get a homogenous, punchy sound, less deformation, and higher output that works well even with standard acoustic soundboards.

Intended for bass ukulele and U-Bass players

If you play a 46–53 cm (18–21") scale bass ukulele or U-Bass, this set suits your needs. The string tension and slick surface support slap, slide, harmonics, and more. Whether you're a beginner or experienced, adapting the strings to your instrument feels natural, even during long sets or when playing with a group.