Ernie Ball Cobalt Super Slinky Electric Strings (2723)

Description

Ernie Ball built the Cobalt line around a simple idea: swap the traditional wrap alloy for cobalt, and the whole tonal picture changes. Because cobalt forms a tighter magnetic bond with your pickups than nickel or steel, these strings translate more of what your fingers are doing straight into the amp. The result is a wider dynamic window – you can dig in for aggressive attack or ease off for cleaner passages, and the strings respond accurately either way.

Tonally, the Cobalt Super Slinky set leans into extremes in a useful way. Low strings carry more weight and definition, while the top end stays articulate and cuts through a mix without turning harsh. Harmonics ring out with more clarity too, which makes chord work and lead lines both feel more three-dimensional.

Beyond the sound, cobalt happens to be a softer alloy, so these strings feel notably smoother under the fingers. Bending, vibrato, and fast position changes all feel less effortful compared to stiffer string types.

This listing is for a single pack in the Super Slinky gauge:

• .009
• .011
• .016
• .024
• .032
• .042

A solid pick for electric guitarists who want extra clarity and low-end presence without sacrificing playing comfort.