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FREE 30-day refund/replacement
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Availability:
In Stock.
Arrives
Thursday, Oct 29
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At a glance
- Condition
- New
- Color
- Power (55-110)
- Style
- 4-String
- Model
- P02731
- Weight
- 4.16 oz
- Material
- Cobalt
- Instrument
- Bass Guitar
- In the box
- Strings only
Features 5
- Cobalt produces a stronger magnetic relationship between pickups and strings than any other alloy previously available
- Patented technology brings a new definition to low end capabilities
- Cobalt Slinkys are also soft and silky to the touch, making string bending a breeze
- Element Shield Packaging prolongs string life and keeps strings as fresh as the day they were made
- Made in California, USA with the freshest and finest materials
Description
Engineered to maximize output and clarity, Ernie Ball Cobalt Slinky Bass Strings are one of the latest innovations in string technology. Seeking to provide guitarists and bassists with a new voice, Cobalt 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 Slinkys are also soft and silky to the touch with perfect intonation. Gauges .055, .075, .090, .110. Part number 2731.
Specs 20
| Brand | Ernie Ball |
|---|---|
| String Gauge | .055 |
| Color | Power (55-110) |
| Instrument | Bass Guitar |
| String Material Type | Cobalt |
| Brand Name | Ernie Ball |
| Number of Items | 1 |
| Global Trade Identification Number | 14 |
| UPC | 749699127314 |
| Item Type Name | Bass Guitar Strings |
| Item Weight | 4.16 ounces |
| Manufacturer | Ernie Ball Music Man |
| Model Name | Cobalt Power Slinky Bass |
| Model Number | P02731 |
| Manufacturer Part Number | P02731 |
| Set Name | Power Slinky |
| Body Material Type | Cobalt |
| Material Type | Cobalt |
| Finish Type | Polished |
| Recommended Uses For Product | Bass Guitar |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Oct 29
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
P Bassists...check em out.
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
Best strings ever
Color: Power (55-110)
Style: 4-String
I’m in love with the colbalts. Everyone’s playing style and tone needs are different. I like that deep, muddy Mississippi blues sound. These strings are strong and have that depth of tone I like. After experimenting with several different brands I went back to Ernie Ball. All because the Colbalt is where it is at. Perfect blend of functionality and pricing.
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Reviewed in the United States on October 8, 2018 by Jay
Fast ship and the right item!
Color: Power (55-110)
Style: 4-String
Excellent! Thank you
Reviewed in the United States on February 20, 2026 by Greg Benson
Bass guitar strings
Color: Power (55-110)
Style: 4-String
I ordered these strings for my grandson bass guitar. He gave me a thumbs up
Reviewed in the United States on December 7, 2025 by Gary W. Lawson
Amazing tone but they do not last
Color: Power (55-110)
Style: 4-String
I LOVE the tone of these strings. If you need the Mike Dirnt sound, this will get you there with most Fender-style bass guitars. I often tell people to try these before they change their pickup. Unfortunately, they are expensive, and the tone lasts about 2 months before the strings are dead like as a doornail. I have switched to Exlier's for longevity but I miss being able to make the Longview tone on command.
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Reviewed in the United States on April 4, 2024 by Jonathan
Awesome tone, power and clarity
Color: Power (55-110)
Style: 4-String
Awesome tone, power and clarity from the fine folks at Ernie Ball. I don't know the mechanics/physics of it, but the cobalt material somehow sounds "fatter" and warmer than even before... Plus, the Music123 shipping was WICKED quick and the product showed up MUCH more quickly than the delivery estimate said it would - talk about underpromising and over-delivering... All in all, I'm VERY pleased...
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Reviewed in the United States on June 5, 2012 by calgolf723
THese things are great. A seasoned bassist will notice hot "live" these ...
Color: Power (55-110)
Style: 4-String
THese things are great. A seasoned bassist will notice hot "live" these strings feel. They want to be played and played HARD. Been using them for a couple years and do not disappoint. Great lows. Sharp highs. Extremely playable. 100% worth a try.
Reviewed in the United States on April 10, 2017 by John P
Usually played other non cobalt strings and the sound was still good, but no where near this
Color: Power (55-110)
Style: 4-String
Currently playing on a Musicman stingray, tuned to D. Usually played other non cobalt strings and the sound was still good, but no where near this. Really like the depth of , even in standard tuning, great tone in the highs, Try these strings!!!
Reviewed in the United States on October 15, 2016 by Andrew