Description
Ernie Ball’s Group IV Flatwound set brings a smooth, glassy playing surface to your bass without sacrificing punch or sustain. Each string starts with a hex-shaped, tin-plated high carbon steel core for durability and consistent intonation, then gets wrapped in flat stainless steel ribbon rather than traditional round wire. The result is a mellower, rounder tone with far less finger noise sliding up and down the neck.
- Gauges: .040, .060, .070, .095
- Flat stainless steel wrap wire for a silky feel and vintage warmth
- Hex-shaped, tin-plated high carbon steel core for durability
- Precision-machined brass ball ends for a secure, accurate fit
Flatwounds like these have long been favored by players chasing that classic, thumpy low-end associated with vintage recordings — think smooth motown-style lines or upright-adjacent warmth on a fretted electric bass. The tight, even wrap also tends to be gentler on frets over time compared to roundwounds, making this set a solid choice if you’re after longevity along with tone.
Whether you’re outfitting your main gigging bass or just want a change of pace from bright roundwound strings, this Group IV set delivers a controlled, articulate voice with less zing and more depth. It’s a straightforward upgrade for players who value feel as much as sound.






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