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Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings 

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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 i...Click To Read More About This Product

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See All Ernie Ball .009 Gauge Electric Guitar Strings
OVERVIEW

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. 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.
"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.


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

Reviews
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Review Snapshot

by PowerReviews
Ernie Ball2723 Cobalt Super Slinky Elecric Guitar Strings
 
4.0

(based on 25 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (3)

76%

of respondents would recommend this to a friend.

Pros

  • Good tone (13)
  • Consistent (7)
  • Well built / quality (7)
  • Long life (5)

Cons

No Cons

Best Uses

  • Practicing (9)
  • Concerts (4)
    • Reviewer Profile:
    • Experienced (11), Professional musician (5)

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 25 customers

Displaying reviews 1-10

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(1 of 1 customers found this review helpful)

 
5.0

Nice change, just a little different

By BRUCE

from undisclosed

See all my reviews

Verified Buyer

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

Want a different sound and feel for your Strat ? Give these a try. Strings have a little coarser / tighter feel, less sloppy and the sound seems a little more compressed. It's just a nice difference if you have a lot of guitars and just want a change of pace. It just gives the single coils a tighter but yet some how focused tone --slap back will be more defined, clean channel will have a nice new narrow voice. Nice change, just a little different. We all need that now and then.

(1 of 1 customers found this review helpful)

 
4.0

I will buy again, But I think I'll go with the hybrids next

By Ken

from Sturgis, South Dakota

About Me Professional Musician

See all my reviews

Verified Buyer

Pros

  • Consistent
  • Good Tone
  • Strong

Cons

    Best Uses

    • Concerts
    • Practicing

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

    First try with the Cobalt's, I like them, already ordered more for my other guitars

    (0 of 4 customers found this review helpful)

     
    1.0

    Don't bother

    By Sparks

    from wi

    About Me Professional Musician

    See all my reviews

    Ask me a question

    Verified Reviewer

    Pros

    • none

    Cons

    • Not Consistent
    • Poor Tone Quality
    • turned black in less than 2 days.

    Best Uses

    • worthless

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

    I have used E.B. M.M. products in the past and was intrigued by this string description. But, don't beleive the hype. These strings are pure garbage. And, to think I paid 2.5 times more for them than I do for 3 sets of Dunlops which have never failed me. Not sure what these are made of. But, if you have a sweating issue, than these are not for you.

    (1 of 1 customers found this review helpful)

     
    5.0

    I will continue to purchase this

    By Mo

    from Hawaii

    About Me Experienced

    See all my reviews

    Pros

    • Good Tone
    • Long Life

    Cons

      Best Uses

      • Concerts
      • Practicing

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

      I've used these since they first came out and are very satisfied with them.

      (5 of 6 customers found this review helpful)

       
      5.0

      Sounds good, playing comfort as well!

      By Brownie

      from Danville, Virginia

      About Me Experienced

      See all my reviews

      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.

        (2 of 3 customers found this review helpful)

         
        5.0

        great strings

        By Fliingv

        from pacifica CA

        About Me Experienced

        See all my reviews

        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

          (4 of 4 customers found this review helpful)

           
          4.0

          Pretty darn good strings!

          By Bc_022904_7_SEA

          from Seattle, Washington

          About Me Experienced

          See all my reviews

          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!

          (5 of 5 customers found this review helpful)

           
          4.0

          Great but not what I was looking for

          By Brennan

          from Ottawa

          About Me Experienced

          See all my reviews

          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.

          (3 of 3 customers found this review helpful)

           
          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...

          (3 of 15 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.

          Displaying reviews 1-10

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