Thomastik Spirocore S25 – Cello String with Powerful Sound and Effortless Response

The Thomastik Spirocore S25 belongs to the renowned Spirocore series by Thomastik-Infeld, which has been among the most popular cello strings worldwide for decades. With its spiral steel core, it offers exceptional elasticity, precise response, and a powerful, well-balanced tone across the entire register.

This string responds exceptionally quickly to the bow, allowing for clear articulation and excellent control. Its brilliant yet warm sound provides outstanding projection – ideal for soloists, chamber musicians, and orchestral players alike.

Features

• Spiral steel core for high elasticity and quick response
• Chromesteel winding for strength and clarity
• String tension: 14.8 kg / 32.63 lb
• Powerful, clear tone with excellent projection
• Outstanding tuning stability and long lifespan
• Short break-in time – ready to play within minutes
• Consistent tonal balance across all strings
• Excellent bow response and dynamic control
• Versatile use: solo performance, ensemble, orchestra
• Made in Vienna, Austria by Thomastik-Infeld