Ernie Ball Regular Slinky Cobalt Bass Strings - 4-String Long Scale | No Limit Guitar Co, Idaho Falls
Ernie Ball Regular Slinky Cobalt bass strings are built around a revolutionary iron and cobalt alloy formulation that delivers higher output, superior tonal clarity, and impressive longevity compared to traditional bass string materials. The unique cobalt blend is engineered to interact more powerfully with your pickups' magnets than any other alloy on the market, translating directly into stronger signal output and a more dynamic, expressive tone. Whether you're laying down heavy low-end grooves or cutting through a dense mix, these four-string long-scale bass strings give you the tools to perform at your best.
Product Overview
The science behind Cobalt strings starts with their iron and cobalt alloy winding — a material chosen specifically for its exceptional ferromagnetic properties. Because cobalt attracts magnetic fields more effectively than nickel or standard steel, your pickups capture more of the string's vibrational energy, resulting in higher output and a noticeably more present, detailed tone across the entire frequency spectrum.
Beyond their tonal characteristics, Ernie Ball Cobalt strings are designed with player comfort in mind. The silky texture of the cobalt winding feels smooth and pliable under the fretting hand, reducing finger fatigue during long sessions and allowing for fluid movement through fast passages and intricate techniques. For bass players who spend extended time on the instrument, the difference in feel is immediately apparent.
Sound-wise, the Regular Slinky Cobalt set produces a wide tonal profile: robust and well-defined low frequencies, enhanced midrange clarity with natural growl and presence, rich harmonic content, and crisp, sustained highs that sit well in both live and recorded contexts. With gauges running .050, .070, .085, and .105, this set strikes a balance between playability and tension well suited to a broad range of playing styles. Note: due to their length, Cobalt strings may not be compatible with some top-loading P Bass instruments — contact us at No Limit Guitar Co in Idaho Falls if you have any questions about fit.
Ideal For
- Rock, metal, and funk bassists who need high-output strings that cut through dense mixes with clarity and presence
- Players seeking enhanced midrange growl and harmonic richness without sacrificing low-end punch
- Bass guitarists who prioritize playing comfort and want a smooth, pliable string feel during long rehearsals and performances
- Gigging and recording musicians who need durable bass strings that maintain consistent tone and intonation over extended use
- Four-string bass players in Idaho Falls looking to upgrade their string game with a proven, professional-grade option
Key Features
Iron/Cobalt Alloy Winding for Maximum Pickup Response
The iron and cobalt alloy used in these strings is specifically formulated to attract your pickups' magnets more effectively than nickel or standard steel windings. The result is measurably higher output and a stronger, more vibrant signal that gives you more to work with at every stage of your signal chain.
Resonant Low End with Midrange Presence and Growl
Ernie Ball Cobalt strings are voiced for a full, powerful tonal character — deep and well-defined lows, a focused midrange with natural growl and enhanced presence, and rich harmonic overtones that make it easy to find your sound in any mix. The crisp, sustained high end adds articulation without harshness.
Silky Texture and Pliable Feel
The cobalt winding produces a uniquely smooth surface that reduces friction under the fretting fingers. This translates to effortless movement across the fretboard, less finger fatigue over long sets, and the ability to execute fast passages and complex techniques with confidence and ease.
Exceptional Durability and Longevity
Cobalt's inherent material strength means these strings hold up to consistent, aggressive playing without losing their brightness or tonal character as quickly as conventional alloys. You get more mileage out of each set, making them a strong value for gigging and recording bassists alike.
Over 60 Years of String Innovation
Ernie Ball has been at the forefront of string design since 1962, when Ernie Ball introduced his first custom Rock N Roll guitar strings to serve gauge-particular players. Today, Ernie Ball produces strings trusted by guitarists and bassists worldwide, including the iconic Slinky family. Every set reflects a legacy built on innovation, quality, and a genuine commitment to musicians.
What's Included
- Ernie Ball Regular Slinky Cobalt Bass Strings (one set, 4-string)
- Gauges: .050, .070, .085, .105
- Manufacturer's warranty
- Free standard shipping
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer Part Number | P02732 |
| Guitar Type | Electric Bass |
| Number of Strings | 4 |
| Gauges | .050, .070, .085, .105 |
| Winding Type | Round Wound |
| Core Material | Steel |
| Winding Material | Iron / Cobalt Alloy |
| Scale Length | Long Scale |
| Coated | No |
Get Your Hands on These Bass Strings Today
Stop by No Limit Guitar Co in Idaho Falls to pick up a set of Ernie Ball Regular Slinky Cobalt bass strings and hear the difference that cobalt alloy makes in your tone. Our team is here to help you find the right strings for your bass, playing style, and budget. Visit our Idaho Falls guitar store or contact us today to check availability.