Ernie Ball .040 EARTHWOOD PHOSPHOR BRONZE ACOUSTIC GUITAR STRINGS
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Manufacturer Information
Ernie Ball
https://www.ernieball.com
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Algam SAS
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A rich and expressive acoustic tone, designed for modern playing
The Ernie Ball Earthwood Phosphor Bronze 40 is designed for acoustic guitarists seeking a warm, full, and detailed sound. The phosphor bronze version of the Earthwood series emphasizes a solid foundation in the lower spectrum while maintaining clear and bright highs for attack precision and chord clarity. The result: a string that enhances both strumming and fingerpicking, with an immediate response feel and a strong presence in the mix.
Whether you play accompaniment, fingerstyle, or more aggressive picking, this gauge provides an extra body and projection, especially appreciated for adding depth to chord progressions and melodic lines. It's a relevant choice to achieve a generous acoustic sound, capable of combining roundness and clarity, both in rehearsal and on stage.
Technical specifications
| Type of cord attachment | Ball end |
| Category | Acoustic single string |
| Draw | 40 |
| Nbr of strings | 1 |
| Spun | round |
| Material | phosphore bronze |
| Brand | Ernie Ball |
| Series | Earthwood |
| Type | acoustic guitar string |
| Alloy | phosphor bronze |
| Gauge | 40 |
| Sound character | warm, rich in lows, sparkling highs |
Questions frequently asked
Is the Ernie Ball Earthwood Phosphor Bronze 40 string sold individually?
This reference includes a single acoustic guitar string, with a gauge of 40.
What sound does a 40 gauge phosphor bronze acoustic string produce?
The phosphor bronze alloy delivers a warm tone rich in bass frequencies. The trebles remain clear to maintain attack precision.
Is the Earthwood Phosphor Bronze 40 suitable for both strumming and fingerstyle?
The 40 gauge provides more body and projection. It supports chord progressions played with strumming. The specified response remains well-suited for arpeggios and fingerpicking with emphasis.
What type of end is used on this string?
A ball end is used on this Ernie Ball acoustic string.
Is the string round wound?
The winding is round. This construction is combined with the phosphor bronze material specified for this Earthwood series string.



