Pirastro Passione is the gut string with increased stability. The sheep gut core of the Passione strings is manufactured, wound, and polished in the traditional way: by hand. Passione strings possess a fascinating diversity of sounds, which allows musicians to alter their tone as desired. The core sound is full, round, and warm and has a complex overtone spectrum causing brilliance and clarity and a great power of projection.

Pirastro Passione cello string composition:

A string: Chrome-steel over steel

D string: Chrome-steel over steel

G string: Chrome-Steel over gut

C string: Tungsten over gut

In 4/4 size. The A and D strings are medium gauge, the G string is in 27 1/2 PM and 28 PM, and the C string is in 32 PM