Ernie Ball 2733 Cobalt Hybrid Slinky 45-105
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What you need to know
What you need to know
- Higher output and optimized magnetic response for bass tones that naturally cut through the mix
- Increased clarity and definition : clear mids, rich harmonics, deep lows, and sparkling highs
- Soft and silky feel for comfortable playing and easier bends
- Airtight pouch to keep strings "fresh" until opened
Manufacturer Information
Ernie Ball
https://www.ernieball.com
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Safety manager:
Algam SAS
Email: contact@algam.net
Address:
Cobalt Technology for a Punchier Bass Sound
With the Ernie Ball Slinky Cobalt, the American brand revisits a classic by injecting real innovation: cobalt. This material stands out with a stronger magnetic induction than traditional iron- or nickel-based alloys, resulting in a higher output level and a wider dynamic range. The outcome: a sharper attack (especially with a pick), enhanced midrange definition, and harmonics that stand out with great precision.
This Hybrid Slinky set in 45-105 gauge aims for balance: enough body for solid lows while maintaining a controlled feel and pleasant flexibility. Whether you play rock, metal, pop, or funk, these 4-string bass strings are designed for musicians seeking the "snap" and clarity of a fresh set, with a smooth feel under the fingers.
Technical specifications
| Tension | Medium | Draw | 45-65-85-105 |
| Type of cord attachment | Ball end | 1st cord pull | 45 |
| Category | 4-string bass | Nbr of strings | 4 |
| Classification | Hybrid | Material | cobalt |
| Reference | Ernie Ball 2733 | Metal type | cobalt |
| Series | Cobalt Slinky | Gauge | 45-65-85-105 |
| Type | Cobalt Slinky Bass | Packaging | airtight pouch |
| Number of strings | 4 | ||
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Customer reviews
What customers say
Summarized and selected by AI from recent customer reviews
These bass strings deliver a bright, punchy sound with excellent sustain. Customers praised the impressive longevity, lasting 5-8 months with proper care. The sound is described as "punchy" and "present" with great sustain. Some noted the tone can be overly metallic initially but mellows after 6-7 hours of play. Overall, customers found them a worthwhile investment.
Review highlights
- “A much punchier sound, more presence, more sustain... It's an investment, but worth it!”
- “Best price/durability ratio, these will remain my favorites!”
- “Brilliant sound, after 6-7 hours of play it's perfect!”
Based on 6 reviews
- 3 stars, 0 reviews
- 2 stars, 0 reviews
- 1 star, 0 reviews
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Bought in November... Always on my bass...:)
I just bought a new game, I'm sharing my thoughts on the ones I'm going to throw away: Brilliant sound (a bit too much at first maybe), then after 6-7 hours of play it's perfect;). After 5 months, the sound started to become “flat” like strings at €20 after 1 month. A quick fix once a week and presto you can easily last 3 more months.
I am changing them to another tie rod, but price/lifespan is the best, yet I tested quite a few (Dadario, Fender, EB Slinky, EB Slinky, EB coated, EB coated, Elexir long-lasting with rubber that locks...). It will remain my favorites;).Automatically translated
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Bought in November... Always on my bass...:)
I just bought a new game, I'm sharing my thoughts on the ones I'm going to throw away: Brilliant sound (a bit too much at first maybe), then after 6-7 hours of play it's perfect;). After 5 months, the sound started to become “flat” like strings at 20 after 1 month. A quick fix once a week and presto you can easily last 3 more months.
I am changing them to another tie rod, but price/lifespan is the best, yet I tested quite a few (Dadario, Fender, EB Slinky, EB Slinky, EB coated, EB coated, Elexir long-lasting with rubber that locks...). It will remain my favorites;).Automatically translated
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Whoouu, compared to the strings I used to have on my bass!! A much more snappy sound, more present, more sustain, more presence... Well, it is certainly an investment, but according to the comments on the long term it is worth it!
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Perfect except for a slightly too metallic sound. It was an attempt, but not disappointed.
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Perfect except for a slightly too metallic sound. It was an attempt, but not disappointed.
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Questions frequently asked
What is the gauge of the Ernie Ball 2733 Cobalt Hybrid Slinky strings?
The set uses a 45-65-85-105 gauge for 4-string bass. The first string is .045 and the tension is marked as medium.
Are the Cobalt 45-105 strings suitable for a 4-string bass?
This set is designed for a 4-string bass and features ball ends. The four gauges provided are .045, .065, .085, and .105.
What tone does cobalt bring to these bass strings?
Cobalt has a stronger magnetic induction than traditional iron or nickel-based alloys. This results in a higher output level and a wider dynamic range. Pick attack is sharper, while mids and harmonics are more clearly defined.
For which styles are the Cobalt Hybrid Slinky 45-105 suited?
The hybrid 45-105 gauge is recommended for rock, metal, pop, and funk genres. It combines solid low end with a feeling of control and flexibility.
How are the Ernie Ball 2733 packaged?
Each Ernie Ball 2733 reference set is sealed in an airtight pouch.
