Ernie Ball Super Slinky Cobalt 5-String Electric Bass Strings 40-125 Gauge
Condition: New
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FREE refund/replacement until Jan 31, 2026
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Availability:
In Stock.
Arrives
Tuesday, Mar 3
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Color: Super 5 (40-125)
Style: 5-String
Features
- Cobalt attracts the magnets in your pickups more than any other alloy available.
- Enhanced output/Increased low end.
- Incredible harmonic response.
- Crisp, clear highs.
- Element shield packaging prolongs string life.
Description
Ernie Ball Cobalt Slinky Electric Bass Guitar Strings provide an extended dynamic range, incredible harmonic response, increased low end, and crisp, clear highs. Cobalt provides a stronger magnetic relationship between pickups and strings than any other alloy previously available. Cobalt Slinky bass guitar strings are also soft and silky to the touch, making string bending a breeze. Gauges .045, .065, .080, .100, .130
Brand: Ernie Ball
String Gauge: Medium
Color: Super 5 (40-125)
Instrument: Bass Guitar
String Material Type: Cobalt
Item Weight: 1.41 ounces
Product Dimensions: 6.69 x 6.3 x 0.79 inches
Item model number: P02737
Is Discontinued By Manufacturer: No
Date First Available: October 24, 2023
Body Material: Cobalt
Color Name: Super 5 (40-125)
String Gauge: Medium
String Material: Cobalt
Material Type: Cobalt
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Mar 3
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Power (55-110)
Style: 4-String
Fantastic tonality, holds up to tuning changes (excellent for drop tunings), longest lasting strings I've gotten for heavy use as far as roundwounds go. Sustained notes don't warble or muddy, even in Drop A tunings. Clean ring out. Comfortable to play. Tone: Full, round, with a nice crunch. Deep lows, warm mids, bright highs. Well balanced. Definitely worth every dollar. Want to bring the thunder without your low end dropping? Fan of drop tunings? Try em.
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Reviewed in the United States on September 11, 2023 by Alsarai
Color: Power 5 (50-135)
Style: 5-String
The strings cut the fingers and stick in the strings when playing. after a few hours of playing it improves. but the sound out put is great. much louder and more reactive. bit of a twang to it though.
Reviewed in the United States on January 12, 2024 by Josue morales
Color: Hybrid (45-105)
Style: 4-String
Been using regular Hybrid Slinky’s for over a decade, I finally decided to pull the trigger on the cobalt’s and I’m never going back. Better low end growl and brighter top end overtones.
Reviewed in the United States on September 8, 2023 by BPP
Color: Super (45-100)
Style: 4-String
I went to buy a replacement set as I had been using EB Cobalts for a while now. I noticed a "used" set posted in original packaging and in good condition, so I thought I could save a few bucks and break-in time. Unfortunately, the "E" was already unraveling and the original buyer returned them and Amazon resold them. Once the outer ribbon starts unraveling they're no good. The original buyer had cut the string, probably before bending it, and it unraveled. Good for the buyer, bad for me. I requested a return and ordered a "new" set. That set came the next day and worked great! Lessons learned, 1) don't buy used strings, 2) bend before cutting or wind the whole string(looks unsightly I know) and 3) buy Amazon as they back their products and mistakes.
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Reviewed in the United States on February 13, 2023 by Miss V
Color: Regular (45-130)
Style: 5-String
For my money the best bass strings on the market!
Reviewed in the United States on October 28, 2023 by Chuck from Chicago
Color: Super (45-100)
Style: 4-String
I gave these strings 2 stars in my first review because the low E snapped above the ball after running it through the body and stretching it. But I have to confess, no other round sounds as good as these. They have no raspiness and provide the most "middy" tone of any round string I've ever tried, and I have tried many. For hex cores they aren't too stiff, and feel very smooth under the fingers. Just treat them gently and be careful when stretching. The E broke during installation and the A went dead after a few weeks.
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Reviewed in the United States on September 13, 2022 by JJC
Color: Regular (45-130)
Style: 5-String
I was skeptical that just changing the type of string could brighten up my sound while also scooping low end frequency AND give more overall volume, but I was willing to gamble 40 bucks to see. I'm glad I did. These will make your bass stand out in the mix and really save your amp from working harder than it has to. I'm playing these on an 09 Ibanez sr305 with arched pickups (which sound great on their own). I'm running through a custom 2x10 cabinet with a micro 250 watt head. These strings gave my 210 similar low end oomph as a single 15 but also kept the high end definition. Really happy with these and will be getting them for my other basses.
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Reviewed in the United States on April 20, 2022 by Thaddeus Mack
Color: Hybrid (45-105)
Style: 4-String
I have been running Ernie Ball Slinky strings on all of my electric guitars and basses for years. I am more of a bass player then a six stinger so I started putting these Cobalts on my basses soon after they came out. I am not 100% sure that these strings effected the tone of my bass but they do sound great. I would have to do a blind taste test to between these and the steel Slinkys to know for sure. I do remember thinking that they sounded better/fuller with more sustain when I first put them on but thats been awhile and I have basically gotten used to thier sound as my new norm so I dont feel comfortable commenting on thier specific sound charactistics at this point. But I will say this, they feel better on my fingers then anything else I have ever used. I can only discribe the feel as soft and flexable. I love the feel so much that I will probably never even try another string set. I use the Dunlap String conditioner cleaner Jim Dunlop 6582 Dunlop Form 65 String Care on my strings almost every time I play (also a killer product). Having said that the stings seem to hold up for ever. I have never seen or felt any visible corrosion on these strings. I love these strings. Try a set out. I dont think you will be disappointed. They feel great on my fingers. I prefer to buy cheeper strings and change often. For the money these are killer strings.
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Reviewed in the United States on January 22, 2013 by D-Rock