6 Sets of Cobalt 2720 Power Slinky.011-.048 Guitar Strings - Clear

Our review of the 6 Sets of Ernie Ball Cobalt 2720 Power Slinky.011-.048 finds these strings best suited to electric players who want increased output, stronger pickup response, and an easy bending feel. The bottom line: these nickel wound, sweat and moisture resistant strings deliver a noticeably fuller low end and crisper highs without changing playing technique, making them a practical upgrade for gigging players and studio guitarists seeking more dynamic range and harmonic clarity.

Key Features

• Nickel wound construction: Provides the familiar warmth and bite of traditional electric strings while preserving clarity across chords and single-note lines.
• Cobalt alloy magnetic response: Strengthens the relationship with pickups so notes read with greater output and pronounced harmonics through both clean and driven tones.
• Enhanced low end: Offers increased body and presence on lower strings for fuller rhythm parts and thicker lead tone without muddiness.
• Silky feel for bends: The strings are soft and smooth to the touch, which makes string bending and vibrato feel easier and more controlled.
• Sweat and moisture resistant finish: Helps extend usable life and keeps tone stable through rehearsals and longer sessions in humid conditions.

Who It's For

These sets are aimed at electric guitarists who want a simple way to increase output and harmonic response without changing pickups or amp settings. Players who record at home or perform live and need strings that sit forward in a mix will appreciate the boosted low end and clearer highs.

Players who prefer vintage bronze-like warmth or who require an ultra-bright glassy tone may want to audition other alloys first, but for most modern rock, blues, metal, and pop players these strings are a versatile, durable choice.

Pros & Cons

Pros

• Noticeably stronger magnetic response with pickups, translating to louder, more defined output.
• Improved harmonic clarity that helps solos and chord voicings stand out in mixes.
• Comfortable, soft feel that reduces finger fatigue during extended bending and lead work.
• Sweat and moisture resistance helps preserve tone and slows corrosion.

Cons

• Players seeking an ultra-bright or vintage-specific tonal color may prefer a different alloy.
• Higher output may highlight pickup or amp noise on poorly shielded rigs.

Specifications

Product	6 sets of Cobalt 2720 Power Slinky
Gauge	.011-.048
Construction	Nickel wound
Alloy	Cobalt-enhanced magnetic response
Finish	Sweat and moisture resistant
Intended use	Electric guitar, enhanced output and clarity

Our Verdict

The Ernie Ball Cobalt 2720 Power Slinky.011-.048 is a strong value for players wanting more output, harmonic richness, and a smooth playing feel without changing their instrument. It is particularly useful for gigging and recording guitarists who need strings that read well through pickups and retain tone under heavy use.

Frequently Asked Questions

Do these strings fit standard electric guitars?
Yes, the.011-.048 gauge set is a common electric guitar size and will fit most standard bridge and nut setups without modification.

How do cobalt strings differ from regular nickel strings?
Cobalt alloy improves magnetic response to pickups, producing increased output and clearer harmonics while maintaining a similar feel to nickel wound strings.

Are these strings corrosion resistant?
They have a sweat and moisture resistant finish that helps slow corrosion and extend usable life compared with untreated strings.