Gear article
Ernie Ball Earthwood 2007 80/20 Bronze Custom Light Set 11.5-54
The Ernie Ball Earthwood 2007 is a set of acoustic guitar strings featuring a custom light gauge of 11.5-54. Manufactured in California, these strings utilize an 80/20 bronze alloy wrapped around a tin-plated hex steel core to produce a crisp, resonant tone suitable for various musical styles.

Composition and Construction
The Ernie Ball Earthwood 2007 strings are constructed using a specific metallurgical blend of 80% copper and 20% zinc, commonly referred to as 80/20 bronze. This wire is precision-wound around a high-carbon steel core that has been shaped into a hexagon and plated with tin. The hex core is a critical design element, as it allows the wrap wire to grip the core securely, ensuring stability and consistent tension across the length of the string.
Ernie Ball emphasises a human element in the winding process, which is intended to provide a level of balance and quality control that purely automated processes may lack. The materials are sourced and manufactured in Southern California, maintaining the brand's long-standing production standards.
Tonal Characteristics
The primary sonic profile of the Earthwood 80/20 Bronze series is defined by a 'crisp' and 'ringing' quality. Because of the high zinc content compared to phosphor bronze alternatives, these strings typically offer a brighter initial attack and prominent overtones. This makes them particularly effective for bringing clarity to darker-sounding acoustic guitars or for players who prefer a high-end shimmer in their strumming and fingerpicking.

Gauge and Playability
The 2007 set is designated as a 'Custom Light' gauge, featuring a specific progression from .0115 to .054. This gauge sits between traditional 'Extra Light' and 'Light' sets, providing a compromise for guitarists who find 10s too thin but 12s too stiff. The .0115 high-E string offers a slightly fuller feel than a standard .011, while the .054 low-E provides enough mass for resonant bass response without excessive tension.
Comparative Analysis
When compared to other Ernie Ball products, such as the 2921 Regular Slinky M-Steel or the 3826 Tim Henson Signature sets, the Earthwood 2007 is strictly designed for acoustic instruments rather than electric. Unlike the Nickel-wound or M-Steel alloys used in electric sets, the 80/20 bronze wrap is non-magnetic and relies on the physical resonance of the acoustic soundboard.
In the broader market, these strings compete with other major manufacturers like D'Addario or Dunlop. While brands like Larsen and Thomastik-Infeld focus heavily on orchestral strings (such as the Spirocore Viola or Larsen Cello series), Ernie Ball maintains a dominant position in the guitar-specific market by focusing on consistency and durability for contemporary musicians.
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Frequently asked questions
- What is the specific alloy used in the Earthwood 2007 strings?
- The strings are made from 80/20 bronze, which consists of 80% copper and 20% zinc. This alloy is known for providing a bright, crisp sound compared to other bronze variations.
- What are the exact gauges included in this set?
- The 2007 Custom Light set features gauges starting at .0115 and ending at .054. The specific intermediate gauges are designed to offer a balanced tension across the fretboard.
- What type of core wire is used in these strings?
- The strings feature a hex-shaped core made of tin-plated steel. The hexagonal shape is designed to help the outer wrap wire stay tight and prevent slippage.
- Where are Ernie Ball Earthwood strings manufactured?
- These strings are manufactured in California, USA. The company highlights the use of fresh materials and a human touch in the winding process at their American facilities.
- What kind of sound should I expect from 80/20 bronze strings?
- You should expect a crisp, ringing sound with pleasing overtones. They are generally brighter than phosphor bronze strings and are often used to brighten up a dull-sounding guitar.
- Are these strings suitable for fingerpicking or strumming?
- Yes, they are suitable for all musical styles. The balanced tone and custom light gauge make them responsive enough for fingerstyle while remaining durable for heavy strumming.
- How does the 'Custom Light' gauge compare to a standard 'Light' set?
- A standard light set usually starts at .012, whereas this custom set starts at .0115. This makes it slightly easier to play and bend notes while maintaining more body than an 'Extra Light' set.
- What is the typical price for a single set of Earthwood 2007 strings?
- In the UK market, these strings typically retail for approximately £9.00. Prices may vary slightly depending on the retailer and current promotions.
- Can these strings be used on an electric guitar?
- While physically possible, they are not recommended for electric guitars with magnetic pickups. The 80/20 bronze alloy does not interact with magnetic fields as efficiently as nickel or steel strings.
- What contributes to the durability of these strings?
- Durability is ensured through the use of high-quality materials and a tin-plated hex core. The precision winding process also helps maintain structural integrity over time.
- How do these strings differ from Ernie Ball Slinky electric strings?
- The Earthwood series uses bronze-based wrap wire specifically for acoustic resonance. Slinky electric strings typically use nickel-plated steel for magnetic conductivity and a different tonal profile.
- Are these strings available for other instruments like cello or viola?
- No, the Earthwood 2007 set is specifically for acoustic guitars. For orchestral instruments, brands like Larsen or Thomastik-Infeld are the standard equivalent providers.
