Detail 01
Cobalt Series
The strings use Cobalt, described as a highly magnetically active string alloy.
Product detailSKU #1321473138392
Ernie Ball2725 Cobalt Extra Slinky Electric Guitar Strings
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Independent shopping perspective
The Korena take
A USA-made Cobalt Series electric-guitar set with Extra Slinky gauges, positioned for increased sustain, clarity, output, flexibility, and resistance to sweat and moisture versus classic nickel-wound strings.
Strong match
Who this is for
- Electric guitar players who want an Extra Slinky gauge set
- Players seeking increased sustain, clarity, and output
- Players looking for strings that resist sweat and moisture better than classic nickel-wound strings
Consider the trade-offs
When to look elsewhere
- Players specifically seeking classic nickel-wound strings
- Players who need gauges other than 8–11–14–22w–30–38
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Extra Slinky gauges
The set is gauged 8–11–14–22w–30–38.
Detail 03
Made in USA
Ernie Ball states these strings are made in the USA.
Final check
Know before you order
- 01Confirm that the Extra Slinky 8–11–14–22w–30–38 gauge set suits your setup and playing preference.
- 02These are electric guitar strings from Ernie Ball's Cobalt Series.
- 03The fourth string is specified as 22w.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What gauges are in this set?
8–11–14–22w–30–38, with a wound 22 fourth string.
02What instrument are these strings for?
They are electric guitar strings.
03How are Cobalt strings described compared with classic nickel-wound strings?
They are described as offering increased sustain, clarity, and output, plus better resistance to sweat and moisture and greater flexibility.
04Where are these strings made?
They are made in the USA.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
4 detailsOther
- Category Source
- detail
- Tier
- new
- Korena Special
- false
- Source Id
- site51321473138392
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