Description
Before flats got trendy again, SIT was already nailing the formula. Power Flat is their original flatwound bass string, built with a ribbon wrap that’s polished down to a glassy, smooth finish under your fingers — no rough edges, no finger squeak, just pure low-end thump.
If you’re chasing that vintage motown thud, a warm jazz upright-style tone, or just want to give your frets a break from the wear roundwounds cause, this is the set to grab. Flatwounds like this one feel completely different than roundwounds — less zing, more focus, and a mellow sustain that sits beautifully in a mix without fighting for space.
What makes Power Flat one-of-a-kind is that smooth ribbon-wound construction paired with SIT’s build quality — consistent tension, long life, and tone that stays warm and round set after set. Swap out a dead, dull string for a fresh Power Flat and you’ll feel the difference immediately: tighter, punchier, and ready to sit deep in the pocket.
- True flatwound construction — ribbon wound, not round
- Polished smooth for a comfortable, quiet playing feel
- Warm, focused low-end with reduced string noise
- Great for vintage, jazz, R&B, and low-maintenance players
Grab a set from StringRush and feel what a real flatwound is supposed to feel like.





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