Rotosound FM66 Swing Bass 66 - Funkmaster 30-90

030-050--070-090 long scale

From the Swing Bass 66 range. This set originally developed in conjunction with Level 42's Mark King.

It first came out under the Superwound ‘Funkmaster’ series with the ‘Piano String Design’ and was available in Nickel and Steel.

Here we have recreated the same set in the regular Rotosound format but still retaining that great sound that you experience when using Swing Bass.

Mark King says

“I’ve been lucky enough to have been involved with Rotosound for over thirty years now, going right back to my first Jaydee and the custom gauges that the guys made up for me, 30-50-70-90, and still do to this day, only now with double-ball ends for my Status King basses. The fantastic tonal consistency of the strings has been the bedrock of my sound, and we all know that your sound starts with the strings, right?. Happy Anniversary guys, here’s to the next 50.”


The most popular Roundwound bass string ever. Rotosound was the first string company to produce this kind of string. Introduced in 1962 it changed the sound of the instrument instantly. The favourite string of many players including Billy Sheehan, John Paul Jones and Geddy Lee. The steel used to produce these strings is unique, combined with a highly secretive manufacturing process.