---
product_id: 4482787
title: "Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings, 11-58 Gauge (P02729)"
brand: "ernie ball"
price: "€ 29.43"
currency: EUR
in_stock: true
category: "Ernie Ball"
url: https://www.desertcart.it/products/4482787-ernie-ball-7-string-power-slinky-cobalt-electric-guitar-strings
store_origin: IT
region: Italy
---

# Cobalt alloy for max magnetic output Balanced tone with crisp highs & strong lows 7-string power for extended range Ernie Ball 7-String Power Slinky Cobalt Electric Guitar Strings, 11-58 Gauge (P02729)

**Brand:** ernie ball
**Price:** € 29.43
**Availability:** ✅ In Stock

## Summary

> 🎸 Power your riffs with the cutting-edge clarity of Cobalt strings!

## 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?** € 29.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/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

- • **Dynamic Tone Mastery:** Experience a wide dynamic range with rich harmonics and crystal-clear articulation.
- • **Trusted by Pros Worldwide:** Join thousands of musicians who rate these strings 4.8 stars for superior sound.
- • **Next-Level Magnetic Response:** Cobalt alloy boosts pickup interaction for unmatched output and clarity.
- • **Unleash Extended Sonic Range:** 7-string design expands your musical horizons with deep lows and soaring highs.
- • **Precision Engineered in California:** Crafted with premium materials for consistent performance and durability.

## Overview

Ernie Ball's 7-String Power Slinky Cobalt Electric Guitar Strings (11-58 gauge) feature a revolutionary cobalt alloy that enhances magnetic pickup response, delivering extended dynamic range, rich harmonics, and a balanced tone with strong lows and crisp highs. Engineered and made in California, these uncoated strings are designed for professional guitarists seeking maximum 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 | #4,228 in Musical Instruments ( See Top 100 in Musical Instruments ) #63 in Electric Guitar Strings |
| Body Material Type | Metal |
| Brand Name | Ernie Ball |
| Coating Description | Uncoated |
| Color | Power (11-58) |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,872) |
| Finish Type | Uncoated |
| Global Trade Identification Number | 00749699127291 |
| Instrument | Electric Guitar |
| Item Type Name | Electric Guitar Strings |
| Item Weight | 0.08 Pounds |
| Manufacturer | Ernie Ball Music Man |
| Manufacturer Part Number | P02729 |
| Material Type | Cobalt |
| Model Number | P02729 |
| 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 |
| UPC | 749699127291 |
| Unit Count | 1.0 Count |
| 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!

## 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)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-07-09*