--- product_id: 4482787 title: "Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings, 11-58 Gauge (P02729)" brand: "ernie ball" price: "β‚Ή 2838" currency: INR in_stock: true reviews_count: 13 url: https://www.desertcart.in/products/4482787-ernie-ball-7-string-power-slinky-cobalt-electric-guitar-strings store_origin: IN region: India --- # Cobalt alloy for max output Extended dynamic range 7-string versatility Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings, 11-58 Gauge (P02729) **Brand:** ernie ball **Price:** β‚Ή 2838 **Availability:** βœ… In Stock ## Summary > 🎸 Elevate your sound with the power of Cobalt – because your tone deserves the edge. ## Quick Answers - **What is this?** Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings, 11-58 Gauge (P02729) by ernie ball - **How much does it cost?** β‚Ή 2838 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/4482787-ernie-ball-7-string-power-slinky-cobalt-electric-guitar-strings) ## Best For - ernie ball enthusiasts ## Why This Product - Trusted ernie ball brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **7-String Mastery:** Expand your tonal palette with a full 7-string set, perfect for modern riffs and complex chords. - β€’ **Unleash Sonic Power:** Cobalt alloy boosts magnetic pickup response for unmatched clarity and punch. - β€’ **Precision Engineering:** Tin-plated high-carbon steel core wrapped with cobalt for durability and consistent tone. - β€’ **Dynamic Range Amplified:** Experience crisp highs and a strong low end that cut through any mix effortlessly. - β€’ **California Crafted Quality:** Made in the USA with premium materials ensuring freshness and reliability every time. ## Overview Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings (11-58 gauge) feature a revolutionary cobalt alloy that enhances magnetic pickup interaction, delivering extended dynamic range, rich harmonics, and balanced tone with strong lows and crisp highs. Engineered with a tin-plated high-carbon steel core, these uncoated strings are crafted in California for premium quality and durability, ideal for professional guitarists seeking superior output and clarity. ## Description Engineered to maximize output and clarity, Ernie Ball Cobalt Slinky 7-string guitar string sets 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. ## Features - Cobalt produces a stronger magnetic relationship between pickups and strings than any other alloy previously available - Cobalt electric guitar strings provide an extended dynamic range, incredible harmonic response, strong low end, and crisp, clear highs - Wound strings consist of Ernie Ball’s Cobalt alloy wrapped around a tin-plated high-carbon steel core wire - Engineered to maximize output and clarity - Made in California, USA with the finest and freshest materials ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B009YPC4YC | | Best Sellers Rank | #3,283 in Musical Instruments (See Top 100 in Musical Instruments) #45 in Electric Guitar Strings | | Body Material Type | Metal | | Brand Name | Ernie Ball | | Coating Description | Uncoated | | Color | Power (11-58) | | Customer Reviews | 4.6 4.6 out of 5 stars (286) 4.6 out of 5 stars | | Finish Type | Uncoated | | Global Trade Identification Number | 00749699127291 | | Instrument | Electric Guitar | | Item Type Name | Electric Guitar Strings | | Item Weight | 1.28 ounces | | Manufacturer | Ernie Ball Music Man | | Manufacturer Part Number | P02729 | | Material Type | Cobalt | | Model Name | Power Slinky Cobalt | | Model Number | P02729 | | Number Of Items | 1 | | Recommended Uses For Product | Electric Guitar | | Set Name | Power Slinky | | Sound Profile | Balanced with Enhanced Low End and Highs | | String Gauge | .011 | | String Material Type | Cobalt | | Unit Count | 1 Count | | Upc | 749699127291 | | Warranty Description | None. | ## Product Details - **Brand:** Ernie Ball - **Color:** Power (11-58) - **Instrument:** Electric Guitar - **String Gauge:** .011 - **String Material Type:** Cobalt ## Images ![Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings, 11-58 Gauge (P02729) - Image 1](https://m.media-amazon.com/images/I/81qg411XWEL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Can these strings handle drop G?** A: I haven't tried drop g, but I Play in drop G# no problem. I have a 26.5 scale length, so if you have a 27' it would definitely work. Probably not with a 25.5' though **Q: would these things handle adgcfad tuning? I'm new to guitars and I wanna jam to some Korn** A: These can take ADGCFAD perfectly fine the strings themselves are good for 25.5 inch scale length but even better on a guitar with 26.5 inch scale regardless they have clarity bite and good feel and I highly recommend them for all styles of music. **Q: I need serious advice. Could I use the lower half of these on my 6 string, just to play music for one band? (Deftones)** A: Yes, you can and I have as long as your bridge will fit the strings through it. You will definitely need to adjust the setup though and the longer the scale length the better. **Q: What is the gauge of the 3rd string supposed to be? My set came with 2 13's** A: Gauges for the Ernie Ball 2730 set are: 10-13-17-30-42-52-62. Thanks! ## Customer Reviews ### ⭐⭐⭐⭐⭐ The difference is night and day. Amazing strings. *by on Reviewed in the United States June 8, 2021* Look, I don't leave reviews. It's usually a waste of time to me, but I had to leave one for these strings. Let me just say. Wow! Truly. Whatever strings I had before, are complete trash compared to these. I recently got an Ibanez 7-string, and I love it. But something about the sound was just...off. Heck, I even started looking at new pickups to buy! Then these came in. Strung em up, not thinking anything outside of it being time to replace my strings. Then I go to play. And (In Joe dirt voice) DANG!! The sound is so clear and vibrant!! 110% difference! I never would have thought that strings could make such a difference with the sound. It blew my mind. 100% recommend. No joke. If you own a 7-string, these are the strings to get. ### ⭐⭐⭐⭐⭐ Awesome strings! *by on Reviewed in the United States March 5, 2015* These are my go to strings for my Music Man JPX 7. I actually use a regular cobalt slinky set then take the 58 from these, then string up a 6 string to D standard with the rest, but anyways;These are great strings. One of my problems with thicker lower strings is that they can very easily sound woofy or too flubby. Not sure if it's a thinner core or the cobalt material itself but these strings (particularly the low B) are ultra clear. I guess if I could sum their sound up in one word it would be punchy! I've tried most other strings out there except for the M steel and I just keep coming back to the cobalt slinkys!Regarding string life, I wouldn't say they are a long life set by any means but they do last longer than regular slinkys. I believe the plain strings are RPS, so nothng new there. Overall, a great string in my book! ### ⭐⭐⭐⭐⭐ All time favorites, brilliance, attack, clarity, stamina. *by on Reviewed in the United States May 11, 2017* My go to strings, every time. They sound like no other, with an extra high/mid brilliance that gives a serious bite. They also last longer than any other kind I've tried in my 25yrs of playing. I love the balance that's offered in the gauge span, super comfortable to play. For reference, I'm tuned g#d#g#c#f#a#d# on a 98' rg7620, and the 11-58 set is perfect for me, some extra give especially on the bottom end, which I prefer as a dynamic bendy player. ## Frequently Bought Together - Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings, 11-58 Gauge (P02729) - Ernie Ball Power Slinky Cobalt Electric Guitar Strings, 11-48 Gauge (P02720) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.in/products/4482787-ernie-ball-7-string-power-slinky-cobalt-electric-guitar-strings](https://www.desertcart.in/products/4482787-ernie-ball-7-string-power-slinky-cobalt-electric-guitar-strings) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-08-29*