Aquila 220U: Flatwound Clarity and Sustainable Innovation

The Aquila 220U - Flat Spiral Series, Acoustic Bass String Set offers premium feel and distinctive tonal response to acoustic bass players. A standout feature is its flatwound copper winding paired with an advanced "Sugar" bioplastic monofilament core. This blend provides warm, clear, noise-free performance, catering to musicians who demand more from their strings. Designed for long-scale acoustic basses (840–860 mm), the set is a practical choice for those wanting reliable tuning and comfortable playability.

Distinctive Materials for Modern Acoustic Basses

Instead of the common steel or nickel, the string set employs dense copper winding and an eco-friendly bioplastic core. With this construction, players experience a softer touch and brighter sound, less string noise, and greater string longevity.

Functional Specs for Everyday Playing

• String Gauges (mm): 1.44, 1.82, 2.20, 2.80 — balanced tension gives smooth feel and even tone
• Scale Length Compatibility: 840–860 mm — fits most 33–34" acoustic basses
• The core is crafted from "Sugar" bioplastic monofilament, resulting in tuning stability and humidity resistance for demanding conditions.
• Winding: Flatwound copper — reduces finger noise and enhances acoustic output