Detail 01
Cobalt alloy windings
Cobalt grabs pickups harder than nickel, so output and high-end detail both increase. Noticeably more aggressive.
Product detailSKU #1321473138301
Ernie Ball2732 Cobalt Regular Slinky Electric Bass Strings - (50-105)
1/2
Independent shopping perspective
The Korena take
Cobalt-alloy bass strings in a 50-105 medium set. For bass players who want more output and top-end bite than standard nickel.
Strong match
Who this is for
- Rock and metal bassists wanting more aggression and pick attack
- Players whose amp or pickups need stronger signal output
- Standard four-string basses tuned to E
Consider the trade-offs
When to look elsewhere
- Players after warm, vintage, thumpy flatwound tone
- Five-string basses, which need an added low B
- Anyone sensitive to bright, grippy roundwound texture
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
50-105 gauge
A medium-heavy bass set. More tension and low-end authority than a 45-100, and a stiffer feel.
Detail 03
Four-string set
Covers E, A, D and G. A five-string bass needs a separate low B string or a five-string set.
Detail 04
Roundwound construction
Textured winding gives growl and finger noise. Wears frets faster than flatwounds over years of play.
Detail 05
Regular Slinky spec
Ernie Ball's standard bass gauge spread, so it drops into most factory setups without major adjustment.
Final check
Know before you order
- 01Check your bass takes long-scale strings before ordering
- 02Moving up from a lighter set adds tension; recheck relief and intonation
- 03Cobalt's extra output may mean backing your amp gain off
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will these fit my five-string bass?
No. This is a four-string set covering E, A, D and G. A five-string needs a set that includes a low B.
02How is cobalt different from nickel bass strings?
Cobalt is more magnetically responsive, so you get higher output and a brighter, more detailed top end. Nickel sits warmer and smoother by comparison.
03Is 50-105 a heavy gauge for bass?
It's on the heavier side of standard. Slightly more tension than a 45-100 set, which means firmer feel and more low-end punch, especially with a pick.
04Do I need to adjust my bass after switching to these?
If you're coming from a lighter gauge, yes. The added tension changes neck relief and intonation. Check both after the strings settle in.
