Ernie Ball 2812 Flatwound Power Slinky 55-110
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What you need to know
What you need to know
- Ultra-smooth feel : flatwound strings for comfortable glide and reduced finger noise
- Modern and more "present" sound : cobalt alloy delivers attack, clarity, and dynamics
- Heavy Power Slinky gauge : ideal for aggressive playing, stable tuning, and solid lows
- Versatile : from studio (clean and controlled sound) to stage (projection and definition)
Manufacturer Information
Ernie Ball
https://www.ernieball.com
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Safety manager:
Algam SAS
Email: contact@algam.net
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The comfort of flatwound, without sacrificing punch
With the Flatwound Power Slinky, Ernie Ball targets bassists who enjoy the "silky" feel of flatwound strings while seeking a more contemporary response. The cobalt, more reactive with pickups, helps maintain attack and detail in the mix, with firm lows and great precision across the fingerboard. The result: quiet playability under the fingers, clear articulation, and a character that remains lively even with a warm and laid-back tone.
Technical specifications
| Tension | Hard | 1st cord pull | 55 |
| Type of cord attachment | Ball end | Nbr of strings | 4 |
| Category | 4-string bass | Spun | flat |
| Classification | Power | Material | cobalt |
| Draw | 55-75-90-110 | ||
| Reference | 2812 | Winding | flatwound |
| Type | electric bass string set | Core | hexagonal |
| Number of strings | 4 | Design | optimized core-to-winding ratio for comfortable tension and good playability |
Questions frequently asked
Are these strings suitable for a 4-string bass?
This set is designed for 4-string bass and includes gauges .055, .075, .090, and .110. The ball end ensures proper mounting on bass bridges compatible with this format.
What are the gauges of the Ernie Ball 2812 Flatwound Power Slinky?
The gauges are 55-75-90-110, with the first string at .055. This Power configuration corresponds to a hard tension.
What tone does cobalt add to these flatwound strings?
The cobalt material is claimed to be more responsive with pickups. It helps preserve attack and detail while maintaining firm lows.
Do flatwound strings reduce finger noise?
Flatwound winding, or flat wraps, provide a smooth feel and quiet play noise under the fingers. Articulation remains clear thanks to the cobalt design.
What is the construction of the Power Slinky Flatwound 2812?
The core is hexagonal and the winding is flat. The ratio between core and wrap is optimized for comfortable tension and good playability. The manufacturer's reference is 2812.



