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Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings   

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Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings are a new spin on Ernie Ball's best selling set of strings which have been played by th...Read More

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See All Ernie Ball .010 Gauge Electric Guitar Strings
OVERVIEW

Play like a pro with these revamped classics.

Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings are a new spin on Ernie Ball's best selling set of strings which have been played by the likes of Eric Clapton, John Mayer, Steve Vai and many more. The Cobalt Series is clearly an improvement on its classic nickel-wound counterpart giving the player increased sustain, clarity and output. In addition, they resist sweat and moisture better and have unmatched flexibility when compared to other nickel wound strings. Cobalt is the most magnetically active string alloy on the planet and attracts the magnets in your pickups more than any other string.

"Ernie Ball Cobalt Strings sound and feel better than anything I've ever played! You have to check these out!" - Slash.
"Cobalt Strings feel incredibly silky under my fingers and deliver more punch, output, and clarity than normal strings!" - John Petrucci.

All Ernie Ball strings are precision manufactured to the highest standards and the most exacting specs to assure consistency, optimum performance and long life. Made in the USA.

Gauges 10-13-17-26-36-46.


Start hearing and feeling the Cobalt difference today. Order now!

Reviews
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Review Snapshot

by PowerReviews
Ernie Ball2721 Cobalt Regular Slinky Electric Guitar Strings
 
4.1

(based on 59 reviews)

Ratings Distribution

  • 5 Stars

     

    (35)

  • 4 Stars

     

    (8)

  • 3 Stars

     

    (10)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (5)

74%

of respondents would recommend this to a friend.

Pros

  • Good tone (36)
  • Well built / quality (26)
  • Consistent (25)
  • Long life (22)

Cons

  • Poor tone quality (5)
  • Not consistent (3)

Best Uses

  • Concerts (21)
  • Practicing (20)
  • Back-up (16)
    • Reviewer Profile:
    • Experienced (30), Professional musician (15)

Most Liked Positive Review

 

Love these strings... sustaining sounds I love...

Actually I am somewhere between Novice and Experienced. I had been using a variety of strings and was okay with a couple of brands. But then I tried these and I was surprised at...Read complete review

Actually I am somewhere between Novice and Experienced. I had been using a variety of strings and was okay with a couple of brands. But then I tried these and I was surprised at the sustain these gems had compared to the name brand strings I had been using. I love them. IF there are others I want to know, but these have sustain and clarity I hadn't been getting until now. Just wow.

VS

Most Liked Negative Review

 

Very different strings

I've been a D'Addario user for the last 10 years; however, I was curious about the new Cobalt strings introduced by EB, because no other string manufacture ever marketed strings made from this...Read complete review

I've been a D'Addario user for the last 10 years; however, I was curious about the new Cobalt strings introduced by EB, because no other string manufacture ever marketed strings made from this metal. When these new EB Cobalt strings were placed on my Fender Highway 1 HSS Strat, I noticed the guitar had much greater dynamics, volume, sustain and tone compared to the regular D'Addario 10-46 used in the past. Even when strumming the electric unplugged, you can definitely feel the energy of the sustain, and hear the dynamics of the individual notes clearly. These traits were also experienced with the guitar being amplified clean and dirty. Because of the strings clearity, you will hear all the nuiances of your playing. So if you play sloppily now, you hear that with these strings. But over time, your playing can become much more precise. As for feel, there seemed to be more drag when sliding. It wasn't as smooth as the D'Addarios. After 3 hours of playing, my fingertips were more chewed-up than playing with the DA's made from nickle. With that said, I also noticed that my guitar frets started to wear down quicker over the last year. Perhaps Cobalt is a harder element than Nickle??? As far as durabily is concerned... the plain strings started to tarnish after about 2 weeks, but tuning, tone, sustain, dynamics and volume were maintained. After about a year, I switched back to DA's because of the fret wear and draggy feel. I will try these on my guitars with stainless steel frets, but will not put them on my regular nickle alloy fretted guitars.

If EB can make these strings with less drag on my fingers, less wear on my frets and ant-tarnish, then that would more justify the price. Till then... I'm going back to D'Addarios.

Reviewed by 59 customers

Displaying reviews 1-10

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1.0

Will never buy again

By DJent777

from Columbus, OH

About Me Experienced

Pros

    Cons

    • Breaks Easy
    • Not Consistent
    • Poor Tone Quality

    Best Uses

      Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

      These are NOT worth the price. They went bad on me about 2 weeks of average-heavy use. I'll be sticking with the regular slinkys from here on out

      Comment on this reviewHelp Icon

       
      5.0

      Currently my go-to strings..

      By Raymond

      from undisclosed

      Verified Buyer

      Comments about 2721 Cobalt Regular Slinky Electric Guitar Strings:

      Great tone and durability, combined with strong output and longevity.

      Comment on this reviewHelp Icon

       
      5.0

      Good price...good quality...

      By karrkentucky

      from Kentucky

      About Me Professional Musician

      Verified Buyer

      Pros

      • Consistent
      • Good Tone
      • Long Life
      • Strong

      Cons

        Best Uses

        • Practicing

        Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

        would buy them again...

        Comment on this reviewHelp Icon

         
        5.0

        Love these strings!

        By Adam

        from Arlington, VA

        About Me Experienced

        Verified Buyer

        Pros

        • Consistent
        • Good Tone
        • Long Life
        • Strong

        Cons

          Best Uses

          • Backup
          • Concerts
          • Practicing

          Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

          These came recommended to me a few years ago by a friend. Since then they've become my favorite strings for my 6-string guitars. Sound great and have a decent lifespan as far as strings are concerned.

          Comment on this reviewHelp Icon

           
          5.0

          Great strings!!

          By Axman885.

          from Long Island New York.

          About Me Experienced

          Ask me a question

          Verified Buyer

          Pros

          • Consistent
          • Good Tone
          • Long Life
          • Strong

          Cons

            Best Uses

            • Backup
            • Concerts
            • Practicing

            Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

            Best strings iv'e ever used!

            Comment on this reviewHelp Icon

             
            5.0

            Interesting strings.

            By Rb

            from Norman OK

            About Me Experienced

            Verified Buyer

            Pros

            • Consistent
            • Good Tone
            • Great harmonics
            • Strong

            Cons

              Best Uses

              • Backup
              • Concerts
              • Practicing

              Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

              Personally the "jury is still out" on these strings. I have them on my Les Paul and while they have fantastic harmonics/tone (part of why I tried them) I don't know that they will be my favorite. No problems with them but just not the "vintage" tone I was looking for. Resonate very well though and feel great. Feel broken in from the start. Interesting design. Others may love them, you decide. I thought they were worth a try.

              Comment on this reviewHelp Icon

               
              5.0

              Great strings

              By Seabass

              from Wesley chapel, FL

              About Me Experienced

              Verified Buyer

              Pros

              • Consistent
              • Good Tone
              • Strong

              Cons

                Best Uses

                • Backup
                • Concerts
                • Practicing

                Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

                These strings are awesome, I put them on my modded ibanez and played away with no regrets.these strings have a punchy tone to them.

                Comment on this reviewHelp Icon

                 
                5.0

                This is all I will use from now on.

                By Jamey

                from Grand Canyon, Arizona

                About Me Experienced

                Verified Buyer

                Pros

                • Good Tone
                • Strong

                Cons

                  Best Uses

                  • Concerts

                  Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

                  Strings feel very different, just the variance in metals used. Kinda scratchy, yet smooth.

                  Comment on this reviewHelp Icon

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Love these strings... sustaining sounds I love...

                  Profile Image

                  By gbhappy

                  from Santa Paula, CA

                  About Me Experienced

                  Pros

                  • Consistent
                  • Good Tone
                  • Long Life
                  • Strong

                  Cons

                    Best Uses

                    • Backup
                    • Concerts
                    • Practicing

                    Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

                    Actually I am somewhere between Novice and Experienced. I had been using a variety of strings and was okay with a couple of brands. But then I tried these and I was surprised at the sustain these gems had compared to the name brand strings I had been using. I love them. IF there are others I want to know, but these have sustain and clarity I hadn't been getting until now. Just wow.

                    Comment on this reviewHelp Icon

                     
                    5.0

                    Best set of strings!

                    By Axman885.

                    from Long Island New York.

                    About Me Professional Musician

                    Ask me a question

                    Pros

                    • Consistent
                    • Good Tone
                    • Long Life
                    • Strong

                    Cons

                      Best Uses

                      • Backup
                      • Concerts
                      • Practicing

                      Comments about Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings:

                      The Best set of strings so far! Last's longer,Great tone, very strong.

                      Comment on this reviewHelp Icon

                      Displaying reviews 1-10

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