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Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings  

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  • MSRP:
    $17.00
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    - $7.89
  • Your Price:
    $911

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See All Ernie Ball .009 Gauge Electric Guitar Strings
Ernie Ball

The most popular Slinkys with a Cobalt twist.

Ernie Ball 2723 Cobalt Super Slinky Guitar Strings are round-wound for maximum clarity and serious punch. The Cobalt Super Slinky set 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.

"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.
"There's a certain degree of clarity and punch you get from Cobalt Strings that I haven't heard tonally from any other strings I've played." - Joe Bonamassa.

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: 9-11-16-24w-32-42.

Features

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

 
Customer Reviews
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Review Snapshot®

by PowerReviews
Ernie Ball2723 Cobalt Super Slinky Elecric Guitar Strings
 
4.1

(based on 21 reviews)

Ratings Distribution

  • 5 Stars

     

    (12)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (2)

80%

of respondents would recommend this to a friend.

Pros

  • Good tone (11)
  • Consistent (6)
  • Well built / quality (6)
  • Long life (4)

Cons

    Best Uses

    • Practicing (7)
      • Reviewer Profile:
      • Experienced (10), Professional musician (3)

    Most Liked Positive Review

     

    Sounds good, playing comfort as well!

    I called about another matter, and the conversation went to guitar strings. I bought a new Gibson Les Paul December 23d, and it came with larger strings that I am used to playing....Read complete review

    I called about another matter, and the conversation went to guitar strings. I bought a new Gibson Les Paul December 23d, and it came with larger strings that I am used to playing. I replaced them with 9-42 Fenders, then later tried a set of expensive Gibson Les Paul strings. As I am impressed with everything about the Les Paul guitar, I was expecting a big difference in the Gibsons, as they were over 3 times the price of the Fenders. The customer service gentleman said that he too had a Les Paul, and had been pleased with the Cobalts. He said that he used the larger gauge and is really impressed, so I ordered a set to see how they were in the light gauge. I will have to say that so far, they are the best that I have tried. I saw a You Tube video where they were interviewing Steve Vai, They were asking him about amps, guitars, recording, performing, and what kind of strings he used. He said that he had been using Ernie Ball strings for years, and that the Cobalts, he uses 9-42, after getting used to them, were all that he now uses. Have you ever heard that guy play? Awesome. He can use anything he wants, but recording and performing are on the Cobalts. I know that this hasn't been about my experience, but I haven't been using them long enough to expect someone to use my review to buy or not buy the new strings. All I can say is that so far, I have no reason to try any others, as these are doing the job in every respect.

    VS

    Most Liked Negative Review

     

    Glad I tried the Cobalt 9's but...

    For all the mysterious hype and celebrity praise about these AND the long wait to get some, I just don't see it ? From 1st glance they're finish is duller than most other strings...Read complete review

    For all the mysterious hype and celebrity praise about these AND the long wait to get some, I just don't see it ? From 1st glance they're finish is duller than most other strings almost looking aluminum-ish and wound ones felt a bit rougher with LOUDER than normal scraping sounds when changing chords while playing clean. I put a set on a Les Paul Classic with 500T & 498R pickups, I can still get pinch harmonics anywhere on my neck and after trying them out in all types of music they sound pretty much like my old strings and I didn't notice any change in being louder or more articulate or easier tuning than $4~$6 strings. I've had them on for a week now and they still seem ok but then again so do my good old Super Slinky's at 1/2 the price. After I use up these 3 sets I'll be sticking with pink Super Slinky's 9's which is what I've been using since 1978.
    Nice shiny package, each string neatly in its own envelope & wound in a perfect "O".
    Well made as usual from Ernie Ball Strings.
    NEVER paying $10 again for 1 set of "NEW" alloy strings OR waiting weeks to get some. BUT Musicians Friend got them to me before ANY local music store had them so HAT'S OFF TO YOU GUYS for that !

    Reviewed by 21 customers

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    Displaying reviews 1-10

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    5.0

    Sounds good, playing comfort as well!

    By Brownie

    from Danville, Virginia

    About Me Experienced

    Ask me a question

    Pros

    • Consistent
    • Good Tone

    Cons

      Best Uses

      • Playing For Entertainment
      • Practicing

      Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

      I called about another matter, and the conversation went to guitar strings. I bought a new Gibson Les Paul December 23d, and it came with larger strings that I am used to playing. I replaced them with 9-42 Fenders, then later tried a set of expensive Gibson Les Paul strings. As I am impressed with everything about the Les Paul guitar, I was expecting a big difference in the Gibsons, as they were over 3 times the price of the Fenders. The customer service gentleman said that he too had a Les Paul, and had been pleased with the Cobalts. He said that he used the larger gauge and is really impressed, so I ordered a set to see how they were in the light gauge. I will have to say that so far, they are the best that I have tried. I saw a You Tube video where they were interviewing Steve Vai, They were asking him about amps, guitars, recording, performing, and what kind of strings he used. He said that he had been using Ernie Ball strings for years, and that the Cobalts, he uses 9-42, after getting used to them, were all that he now uses. Have you ever heard that guy play? Awesome. He can use anything he wants, but recording and performing are on the Cobalts. I know that this hasn't been about my experience, but I haven't been using them long enough to expect someone to use my review to buy or not buy the new strings. All I can say is that so far, I have no reason to try any others, as these are doing the job in every respect.

      Comment on this review

       
      5.0

      great strings

      By Fliingv

      from pacifica CA

      About Me Experienced

      Verified Buyer

      Pros

      • Consistent
      • Good Tone
      • Long Life
      • Strong

      Cons

        Best Uses

        • Practicing

        Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

        n/a

        Comment on this review

         
        4.0

        Pretty darn good strings!

        By Bc_022904_7_SEA

        from Seattle, Washington

        About Me Experienced

        Ask me a question

        Pros

        • Consistent
        • Good Tone
        • Long Life
        • Strong

        Cons

        • Gets Corroded Quickly

        Best Uses

        • Gigging
        • Jamming
        • Practicing

        Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

        Okay I do not understand why these strings are only a "one star quality" to some people. These strings are good. Not great. But as far as the positives go, the strings look beautiful when you first put them on. They almost have a bluish tint to the radiant silver strings. I can tune my guitar from E standard to Drop B and back to standard without them snapping. The tone is great and will last you a while. As for the ONLY negative, if your hands get really sweaty then you will get early corrosion. If you clean them reguarly expect them to look gross after two weeks. But overall, not too spendy, will last two months of moderate playing, and they look great for those non-sweaters! Get these!

        Comment on this review

        (1 of 1 customers found this review helpful)

         
        4.0

        Great but not what I was looking for

        By Brennan

        from Ottawa

        About Me Experienced

        Pros

        • Good Tone
        • Strong

        Cons

        • A Little Expensive
        • Too Bright

        Best Uses

        • Concerts
        • Practicing

        Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

        When these were advertised I was curious to try them, I had been a big fan of DR strings but decided to give these a try. When I got my guitar home and plugged it in the sound was really good and powerful but when I tried to play a solo with them I found them to be too treble and mid heavy for my taste as I like a more warm sound. All in all these are great powerful strings that have a really good tone but if you are looking for a warm tone these may not be the strings for you.

        Comment on this review

         
        5.0

        Best strings ever!

        By Doc Lem

        from Ocean Shores, Wa

        About Me Professional Musician

        Pros

        • More Sizzle

        Cons

        • No cons

        Best Uses

        • Rock'in Out

        Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

        If these strings don't work, buy a better guitar... Got an American Strat with a SD Pearly Gates humbucker and the Cobalt strings really sizzle... Yea! Just ordered up a few more packs...

        Comment on this review

        (1 of 10 customers found this review helpful)

         
        1.0

        Buy these if you like fret buzz

        By NumberOneFan

        from Poopsville

        About Me Experienced

        Pros

        • None
        • Pretty Packaging

        Cons

        • Buzzy
        • Over Priced
        • Rough Windings
        • Tinny Sounding

        Best Uses

        • Country Twanging
        • Direct To Trash Barrel

        Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

        Made the guitar frets on my Esp Eclipse sound like they were being attacked by bees. Took them off 5 minutes later & restrung with the usual strings I use which have no issues at all. Not worth the extra $$ to try these, and not worth the time to beg for a refund. Went straight into the trash barrel. Oh, I almost forgot, the windings are so rough that it will slow down your playing like speed bumps. Don't waste your time trying these strings. I bet Slash doesn't have these on any of his guitars right now even though he is a paid endorser.

        Comment on this review

        (1 of 1 customers found this review helpful)

         
        5.0

        Tasty Strings

        By SPACECOWBOY

        from Montana

        About Me Experienced

        Ask me a question

        Pros

          Cons

            Best Uses

              Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

              Tried 9-42 Cobalt set with 20th Annv. McCarty into 2-12 Mesa Lonestar. Sound was harmonically rich and clear with an elastic feel that felt smoother than regular slinkys, maybe the feel was a bit like pure nickels, but with a sound that was hotter and brighter, almost like kicking on a booster pedal. I'll need more time to experiment with different pickups and amps to give a concrete assessment to see if they are worth the money. It has taken me a while to try them probably because I wanted to see what other's thought and didn't want to buy into another peace of technology. Now that I've tried them I think I can say they're not as bad as others claim them to be. I feel I understand sound pretty well and would encourage others to experiment with tubes, pickups, amps, guitars, etc. to see where Cobalts might fit into a particular setup. It's ok to change the settings on your amp too. These string's could be another alternative tool to switch things up once in a while when one gets board with they're setup and sound.

              Comment on this review

              (1 of 1 customers found this review helpful)

               
              5.0

              sound great

              By codo

              from Dallas, TX

              Verified Buyer

              Pros

              • Good Tone

              Cons

                Best Uses

                  Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

                  has a stronger tone that most strings

                  Comment on this review

                  (1 of 2 customers found this review helpful)

                   
                  5.0

                  rich tone strings

                  By LARS

                  from northern Ohio (Cleveland area)

                  About Me Experienced

                  Verified Buyer

                  Pros

                  • Good Tone
                  • Strong

                  Cons

                  • Higher in price

                  Best Uses

                  • Practicing

                  Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

                  I record frequently, so it is best to have a good string so the nuances of the guitar are captured on media.These cost a bit more, but might be worth the $$.They last a little longer than standard nickle strings.They have a crisper tone, and are also louder(to my ears). You get a better signal when recording.They are packaged in a sealed package. If you buy several sets, and store them, they will not get corrosion while waiting to be openned and placed on your guitar.

                  Comment on this review

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Ernie Ball Super Slinky Cobalt Review

                  By RavenStrat89

                  from London, UK

                  About Me Experienced

                  Pros

                  • Bright
                  • Consistent
                  • Good Tone
                  • Punchy
                  • Strong

                  Cons

                    Best Uses

                    • 80's Metal
                    • Early Van Halen

                    Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

                    I just put these strings on three days ago. THEY ARE AWESOME! I have been 100% loyal to super slinky guitar strings. I all I have to say is, "I am converted". These strings would be especially useful for early Van Halen style guitar playing. They are very bright, clear, and punchy. I think any 80's metal guitarist would appreciate these qualities. :)

                    Comment on this review

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