Aquila 70U Red Series Strings for soprano ukulele

Unwound Low-G Ukulele String for a Balanced Soprano Sound

The Aquila 70U - Red Series, Ukulele Single String - Soprano, Low-G (4th), Unwound serves as an unwound low-G string for soprano ukulele players after a warmer, more natural tone than wound G strings provide. Many users select this model to achieve a full low-G register without metallic sustain, rapid wear, or unwanted noise from wound strings. For those aiming for authentic fingerpicking or a more organic ukulele timbre, the 70U combines elasticity with density to solve common issues. Among single strings for ukulele, this model distinguishes itself by leveraging advanced materials and a player-centric design.

Unique Red Series Material Innovation

What truly sets the YRS-23 apart is its specialized Nylgut formula, infused with red copper powder to nearly double the density of standard Nylgut. As a result, the string can maintain low-G tension and tone while staying unwound for a smoother, more consistent playing experience. Its red-brown color and textured surface further set it apart from conventional options.

• Material: Nylgut with red copper powder — boosts density for accurate low-G tuning
• String Type: Unwound, single 4th string (G) — reduces squeak and avoids rapid oxidation
• The diameter is approximately 1.00–1.07 mm, making it compatible with standard soprano ukulele nut slots.
• Color: Red-brown — easy visual identification and signature Red Series look
• Finger noise is minimized by the textured surface compared to regular Nylgut strings