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🎶 Unleash your sonic edge with Ernie Ball Cobalt – where speed meets power!
Ernie Ball Extra Slinky Cobalt Electric Guitar Strings (8-38 gauge) combine a cobalt alloy wrap with a tin-plated high-carbon steel core to deliver enhanced magnetic output, extended dynamic range, and ultra-light tension for fast, expressive playing. Made in the USA, these strings offer a balanced sound with crisp highs and strong lows, perfect for professional guitarists seeking superior tone and playability.















| ASIN | B007NCVWNW |
| Best Sellers Rank | 543 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 41 in Guitar Strings |
| Body Material Type | Steel |
| Brand | Ernie Ball |
| Brand Name | Ernie Ball |
| Coating Description | uncoated |
| Coating description | uncoated |
| Colour | Extra (8-38) |
| Country of Origin | USA |
| Customer Reviews | 4.6 out of 5 stars 522 Reviews |
| Finish Type | Uncoated |
| Global Trade Identification Number | 00749699127253 |
| Included Components | Guitar Strings |
| Instrument | Electric Guitar |
| Item Type Name | Electric Strings |
| Item Weight | 18 g |
| Manufacturer | Ernie Ball |
| Manufacturer Part Number | 2725 |
| Material Type | Steel |
| Model Name | Extra Slinky |
| Model Number | P02725 |
| Number of Items | 1 |
| Product Warranty | None. |
| Recommended Uses For Product | Electric Guitar |
| Set Name | Ernie Ball Extra Slinky Cobalt |
| Sound Profile | Balanced with slight emphasis on lows and highs |
| String Gauge | Extra Light (.008, .011, .014, .022w, .030, .038) |
| String Material Type | Cobalt |
| String gauge | Extra Light (.008, .011, .014, .022w, .030, .038) |
| String material type | Cobalt |
| UPC | 749699127253 |
| Unit Count | 1 count |
A**R
Very good strings
I’ve not tried this particular one before, usually opting for the Ernie ball 9’s ( pink pack) but I wanted to try the 8’s , they are pretty good to be fair , not broken one ( yet , and I do tend to dig in a bit) stay in tune very well, ( after a good stretch) good sound and a decent price, will buy again, not had them long enough to rust yet, but I play every day so that’ll keep it down
A**D
Converted to Cobalts!
Bought these on a whim as I've used Ernie Ball's extra slinky nickel wound for years, but thought I'd try out the cobalt version. Since then I only use cobalts! The volume and tone (whether plugged in or not) seems increased, the cleans sound prettier and full (but not muddy), and when put through distortion it sounds crisper, both chords and single notes stand out better than ever. The feel is smoother than nickel wound, and if you've bought/used to extra slinky you'll already know about the insane bends you can pull off. A friend of mine uses Cobalts (13's as supposed to my 8's) to help with a Nickel allergy and confirms the improvement on the thicker end of the scale as well, so added bonus there! The only negative side, and it's not a biggy is they go darker faster than nickel wound, normally this is a sign you need to change them when it's nickel wound but it's not necessarily the case with Cobalts.
M**L
Great product
Just fitted these to my 80s Washburn and boy do they sing! Fantastic strings, beautiful sound and good value for money. Would recommend them especially if you want a string that's a super light action and bends really easily.
A**R
They work
Thought the string were black. A little disappointed that they were normal steal strings
T**R
Earnie Ball Cobalt
I haven't had the opportunity to use these strings yet, as my previous Ernie Ball strings are still going strong and sounding good. Therefore, I base this recommendation on reports that I am hearing about them from other guitarist's.
M**N
Best String around
The price was really great lowest online These string do what it says on the pack Keep the price as low as you can !!
A**C
Exelent
Exelent
S**T
1 st string snapped
1st string snapped 5 mins after being restrung and was not touching guitar, break was at machine head, Ive never had that before. Since I only bought one packet I can not say about the sound of them.
K**D
O som das cordas é bem brilhante
Eu gostei muito do timbre que essas cordas tem, é bem mais brilhante e tem um sustain maior do que a corda que estava usando antes. Com certeza vou comprar esse de novo.
M**Z
Muy buena calidad.
Usualmente usaba cuerdas La Bella, que son muy buenas, pero ya no es muy fácil encontrar de este calibre. Las Ernie Ball de Cobalto son actualmente las mejores cuerdas que he encontrado de ese calibre.
R**K
A great string for the price.
Great for bending. They stay in tune and are easy to play.
A**ー
6本中3本が錆びていました
1~3弦が錆びており使い物になりません。 星1つにしていますが本来の音がわからない状態なのでもともとの品質の評価というわけではないですが。 008というあまり使われないゲージなので在庫が相当古かったんでしょうね。 メーカーさんとしてはさぞ不本意でしょう。プレイヤーは理想の音に近づけるため悩んで悩んで、試行錯誤を重ねているのにそれを妨げるようなことが起きてしまうのが非常に残念です。 ここでは2度と買いませんが、音楽業界の将来のため改善を期待します。
G**.
I love the strings they last forever with great harmonics
I love the strings they last forever the harmonics are awesome very comfortable
Trustpilot
2 months ago
4 days ago