Description
Cobalt Beefy Slinky strings mark a genuine leap forward in wound-string alloy technology. Ernie Ball formulated Cobalt to interact more strongly with magnetic pickups than nickel or stainless steel, giving these strings a wider dynamic window and a more expressive touch response across the fretboard.
Players get an unusually balanced tonal picture: low strings dig in with added punch and definition, while the plain steel highs stay articulate and glassy rather than brittle. The harmonic content comes through with more clarity, so chords ring with separation instead of blurring together, and single-note lines cut with presence.
Feel-wise, the Cobalt alloy has a smoother, more supple surface than typical string wire, which translates into easier bends and vibrato without sacrificing durability. It’s a set built for guitarists who want their rig – amp, pickups, and fingers – to communicate with less signal loss along the way.
This listing is a 12-pack of the Beefy Slinky gauge, so you’re covered for a full year of fresh strings or shared use across your gigging and backup guitars.
- Gauge set: .011, .015, .022 (wound), .030, .042, .054
- Cobalt alloy winding for enhanced pickup response and extended dynamic range
- Crisp, clear high strings paired with stronger, more defined low end
- Smooth, silky feel that makes bending and vibrato more comfortable
- Sold as a case of 12 individual string sets





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