Obligato strings have a core made from a modern synthetic multifilament fibre.

Obligato strings sound warm and full, yet have a brilliant and focused tone. big and powerful tone excellent playability and response throughout the entire dynamic range excellent tuning stability absolutely insensitive to variations in temperature and humidity All Strings have a ball-end. - A-steel wound with aluminum - D- and G-silver - C- synthetic /Tungsten-Silver Envelope Package