Ernie Ball 2730 Cobalt Slinky Skinny Top HB 7C 10-62
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Manufacturer Information
Ernie Ball
https://www.ernieball.com
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Algam SAS
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A modern and powerful tone, designed for precision
The Ernie Ball Cobalt Slinky strings are designed for electric guitarists who want a sharper and more detailed sound without sacrificing comfort. Thanks to cobalt, these strings offer superior magnetic response compared to more traditional alloys: the sound gains presence, pick attack becomes clearer, and every articulation stands out with more definition. Ideal for modern tones, tight palm mutes, complex chords, and leads that need to remain clear in a dense mix.
Skinny Top Heavy Bottom: control, sustain, and feel
With this 10-62 gauge in 7-string, you benefit from relatively flexible trebles for bends, legato, and expressive playing, while maintaining thicker lows for better tuning stability and a firm attack. This set is especially suited for metal, prog, djent, and modern rock musicians, or any setup where the 7th string needs to remain precise and punchy.
Technical specifications
| Tension | Extra hard | 1st cord pull | 10 |
| Type of cord attachment | Ball end | Nbr of strings | 7 |
| Category | electric | Material | cobalt |
| Classification | Skinny top heavy bottom | Special feature | 7-string |
| Draw | 10-13-17-30-42-52-62 | ||
| Brand | Ernie Ball | Material / metal type | cobalt |
| Reference | 2730 | Gauges | 10-13-17-30-42-52-62 |
| Number of strings | 7 | Feature | 7-string set |
| Type | Cobalt | Packaging | airtight pouch |
Questions frequently asked
What are the gauges of the Ernie Ball 2730 Cobalt Slinky 7-string strings?
The set features gauges 10-13-17-30-42-52-62, with the first string at .010 and the seventh at .062.
Are these 10-62 strings suitable for a 7-string guitar?
This model is designed for 7-string electric guitars. Its seventh string at .062 provides a firm attack and good precision in the low end.
What tone do the Cobalt Slinky strings produce?
Cobalt offers a magnetic response superior to more traditional alloys. The sound gains presence and definition, with a clearer pick attack. Articulations remain clear in a dense mix.
Is the Skinny Top Heavy Bottom 10-62 set suitable for metal?
This configuration combines relatively flexible trebles with thick lows. It is well suited for tight palm mutes as well as metal, prog, djent, and modern rock styles.
What type of ball end and packaging are provided?
The strings have ball ends. They are delivered in a sealed pouch.



