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Rotosound Swing Bass 66 is the roundwound stainless steel bass string set that defined the bright, aggressive rock bass tone in the 1960s. This is the long-scale set in 30-50-65-85, a light gauge that plays fast and bends easily. The best new price is $24.65 at gear4music.com as of November 7, 2026, with 7 stores listing it new.
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Lowest price we've seen: $22.99 on Nov 7 at Tarpley Music. Tracked across 14 stores since Nov 7.
Owners rate these strings highly, with 4.8 out of 5 from 409 ratings. Most praise the classic bright rock tone and long life, while some note finger noise and a rough feel.
The electric bass string that started a revolution and brought the bass player from the back line to the front. This is the string that James How and John Entwistle perfected into what was to become the industry standard. The bright punchy high energy sound this string offered and so much a big part of early rock music as we know it, quickly grew in popularity to all four corners of the globe and remains the leading contender to this present day.