Ernie Ball Earthwood 80/20 Bronze Light (.011–.052): the brand's original acoustic bronze

Ernie Ball Earthwood 80/20 Bronze Light is the company's original acoustic guitar string, first sold in 1974, two years after the Earthwood acoustic brand launched in 1972 on the back of the Slinky electric line's success. It's built from 80/20 bronze wrap wire, 80 percent copper and 20 percent zinc, over a hex-shaped, brass-plated steel core, in a Light .011 to .052 gauge, SKU P02004.

Ernie Ball's own site today describes the alloy as "clear, bright, balanced tone with excellent clarity." Fifty-plus years after its 1974 introduction, it's still in active production, sold alongside newer Ernie Ball acoustic lines like Paradigm and Aluminum Bronze.

Most of Ernie Ball's better-known Slinky electric sets use a tin-plated hex steel core. Earthwood 80/20 Bronze doesn't: Ernie Ball's own spec sheet lists the core wire as hex-shaped, brass-plated steel. Brass and bronze share a copper base, so pairing a brass-plated core with a bronze wrap keeps the string's underlying metal chemistry closer to uniform than a tin-plated core would, one detail that separates Ernie Ball's acoustic engineering from its electric line, even within the same company.

The tone result lines up with what Ernie Ball's site says today: bright, clear, and balanced, with the zinc content in the 80/20 alloy pushing more top-end shimmer than the warmer phosphor bronze alternative. It's the same tradeoff every 80/20 bronze set makes against phosphor bronze, more top-end sparkle now, faster tonal mellowing over weeks of play, because 80/20 bronze lacks the phosphorus that gives phosphor bronze its extra corrosion resistance. For the full alloy breakdown, see our phosphor bronze vs 80/20 bronze comparison.

• Classic rock and blues-rock players who want the alloy Ernie Ball's own artist roster ties to Jimmy Page, Slash, and Joe Bonamassa
• Players who want a genuinely looser Light gauge: .011 high E is a half-step lighter feel than the more common .012-.053 factory default
• Vintage tone chasers running the same 80/20 formula Ernie Ball has sold since 1974
• Recording sessions that want a bright, detailed acoustic to sit forward in a mix

• Players who hate restringing often: 80/20 bronze mellows faster than phosphor bronze; a coated set or D'Addario EJ16 Phosphor Bronze holds tone longer
• Warm fingerstyle tone: phosphor bronze's fuller low end suits fingerstyle more naturally than 80/20's brighter balance
• Players locked into .012-.053 setups: this is a genuinely lighter .011 gauge, not a drop-in replacement without a truss-rod check on some guitars

Earthwood 80/20 Bronze Light is one of Ernie Ball's oldest acoustic products still in production, dating to the Earthwood line's 1974 launch, and it still does the one thing it was built to do: bright, clear, balanced acoustic tone at a genuinely light .011-.052 gauge. If you already play Ernie Ball electric strings and want the same brand on your acoustic, or you're chasing the vintage 80/20 sound that classic and blues-rock players have used for decades, this is the set. Players who want a slightly heavier, more common .012-.053 gauge in the same alloy should compare it against D'Addario EJ11 instead.

Ernie Ball

Earthwood 80/20 Bronze Light (.011–.052)

.011 – .052

Price tier: $

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