Ernie Ball 2730 Cobalt 7-string Skinny Top/Heavy Bottom Electric Strings

.010-.062 Electric Guitar Strings - Cobalt - 7-string
Ernie Ball 2730 Cobalt 7-string Skinny Top/Heavy Bottom Electric Strings image 1
Ernie Ball 2730 Cobalt 7-string Skinny Top/Heavy Bottom Electric Strings image 1
$11.99
Sweetwater Savings: $13.50 MSRP: $25.49

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Ernie Ball 2730 Cobalt 7-string Skinny Top/Heavy Bottom Electric Strings
In Stock!
$11.99

Next-gen Guitar Strings

Ernie Ball Cobalt guitar strings are made of a new alloy formulation that gives you higher output, better sound, and longer life. Cobalt strings' special iron/cobalt blend attracts the magnets in your pickups better than any other alloy. When you string up with Ernie Ball Cobalts, you'll immediately notice the incredible comfort these strings offer - silky and pliable under your fretting fingers; your pick will seem to glide over the strings, letting you execute fast passages effortlessly. And when you plug in, you'll get increased power, beefy yet defined lows, improved midrange focus, harmonics and sustain, and crisp highs. Try a set of Ernie Ball Cobalt strings - you're gonna love 'em!

Ernie Ball Cobalt Guitar Strings at a Glance:
  • Beta tested by the creme de la creme
  • Cobalt formula gives you higher output and better sound
  • Cobalts last longer
Beta tested by the creme de la creme

In the development of their Cobalt strings, Ernie Ball tapped select members of their star-studded artist roster - including Steve Morse, John Petrucci, Randy Jackson, Tony Levin, and Slash - to be beta testers for the new formulation. John Petrucci reported that the Cobalts sound "amazing," with "increased power, incredible clarity, and incredible sonic balance." He noted that the Cobalts seem "softer" under your fretting fingers (the term he used was "buttery"). Slash noted that - before being plugged in - the Cobalts "have an entirely different feel than normal strings." He goes on to characterize this sensation as "bouncy and pliable," and "a lot of fun for bending." When amplified, Slash commented that the Cobalts were just as bright as titanium strings, but more "guttural," with more "growl to them."

Cobalt formula gives you higher output and better sound

A half century ago, Ernie Ball practically invented "rock" guitar strings. And now, with Cobalt, they've re-invented them. After exhaustive testing of over 350 alloy combinations, the company ended up with an optimal formula that - compared to conventional strings - gives you higher output, beefier lows with increased definition, improved midrange focus, shimmering harmonics, and more robust sustain. You get a brighter sound without inducing harshness by turning up the treble on your amp.

Cobalts last longer

Ernie Ball Cobalt guitar strings last longer, retaining their brightness long after other strings have given up the ghost. Steve Morse reported having a set on one of his guitars "for several weeks," and with daily use - "sweaty hands" and all - the Cobalts "still sound bright.... They just don't have that dead sound," he says. So, with higher output, better sound, and the monetary benefits of not having to change strings so often, Cobalts have it all over traditional alloy formulations. Check out a set of Ernie Ball Cobalt strings - you'll love 'em!

Ernie Ball Cobalt Guitar Strings Features:
  • 7-string guitar set
  • Punchier, higher output strings
  • Beefier lows with increased definition and growl
  • Increased midrange focus, harmonics, and sustain
  • Lasts longer than conventional strings
  • .010, .013, .017, .030, .042, .052, .062
  • Made in USA
Try the strings the pros ar raving about: Ernie Ball Cobalt guitar strings!

Tech Specs

Guitar Type Electric 7-string
Number of Sets 1
Coated No
Gauges .010, .013, .017, .030, .042, .052, .062
Core Material Steel
Winding Material Iron/cobalt alloy
Winding Type Round
Manufacturer Part Number P02730

Customer Reviews

3.5/5
Based on 1 review
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3.5/5

Yes and No

I would have to say, these strings sound absolutely amazing- with that said, I have a slight bit of indifference to them. I find it much more difficult to slide up and down the neck with them. It feels as if my fingers get hung up or something. This would not matter too greatly if I did not spend so much time playing shred-genre music for speed is everything! Other than that, these strings do last twice as long as other strings and they are made in the USA and do not support communism:)
Music background: Guitar Teacher
See also: Electric Strings, Ernie Ball, Ernie Ball Electric Guitar Strings