Detail 01
45-100 gauge
Lighter than the common 45-105. Slightly looser feel, easier bends, a little less low-end heft.
Product detailSKU #1321473138273
Ernie Ball2734 Cobalt Super Slinky Electric Bass Strings - (45-100)
1/2
Independent shopping perspective
The Korena take
Cobalt-alloy bass strings in 45-100 gauge, a light set for 4-string electric bass. For players who want a brighter, hotter output than nickel.
Strong match
Who this is for
- 4-string bass, standard tuning, lighter feel under the fingers
- Slap and fingerstyle where string clarity matters
- Players who want more midrange bite from passive pickups
Consider the trade-offs
When to look elsewhere
- 5-string basses — this is a 4-string set
- Drop tunings, where 100 on the low end goes slack
- Players chasing warm, vintage thump rather than brightness
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
Cobalt alloy wrap
Stronger magnetic response than nickel, so pickups read them hotter with more upper midrange and treble.
Detail 03
Roundwound construction
Textured surface gives growl and finger noise. Wears frets faster than flatwounds.
Detail 04
Super Slinky tension
In Ernie Ball's bass lineup this is the light end — low tension, quick response, less resistance for fast lines.
Detail 05
4-string set
Covers E-A-D-G. No low B, so 5-string players need a different set.
Final check
Know before you order
- 01Changing gauge can shift neck relief and intonation — expect a truss rod and saddle check
- 02Cobalt reads hotter, so you may need to lower pickups or trim gain
- 03One set only. No cleaner, winder, or cutters included
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will these fit a short scale bass?
Only if the string's winding length reaches the nut. Short scale basses generally need short scale strings; check your bass's required length before ordering.
02Is cobalt brighter than nickel?
Yes. Cobalt has a stronger magnetic pull on the pickups, which comes across as more output and more upper midrange and treble.
03How is this different from Power Slinky?
Gauge. Super Slinky is the lighter 45-100 set. Power Slinky is heavier, so it feels stiffer and pushes more low end.
04Do these work through the bridge on a string-through body bass?
String-through routing needs more length than top-load. Measure your bass's ball-end-to-nut distance and confirm it falls within a long scale set's reach.
