Thomastik-Infeld: Precision Born in Vienna

Founded in 1919 by Dr. Franz Thomastik, a violin maker, and Otto Infeld, an engineer, Thomastik-Infeld emerged in Vienna, Austria, with one goal: to revolutionize string making through science and craftsmanship. At a time when gut strings were still dominant, the duo introduced the use of steel cores, delivering unmatched stability and durability. Their innovation transformed the sound of bowed instruments in orchestras and studios around the world.

To this day, Thomastik maintains its production in Vienna, where every string is individually hand-inspected and crafted using a blend of traditional methods and cutting-edge technology. Whether it’s the warm tones of Dominant, the power of Peter Infeld,  Thomastik strings are known for precision, clarity, and consistency that professionals rely on across all genres.




Peter Infeld Violin String Set (PI Series)

Power. Nuance. Pure Expression.

The Peter Infeld Violin String Set, handcrafted in Vienna by Thomastik-Infeld, is a premium choice for soloists and advanced players seeking a complex tonal spectrum, excellent projection, and effortless playability. Named in honor of the late Peter Infeld, this set represents the pinnacle of Thomastik’s string-making expertise.

Core Features:

  • Synthetic Core A, D, and G Strings – Provide a warm, rich tone with outstanding tuning stability and a broad dynamic range.

  • Platinum-Plated E String (or optional Gold/Stainless Steel) – Delivers a brilliant, focused upper register with smooth response and minimal whistle.

  • Wide Tonal Palette – Allows the player to shape sound with great nuance and color.

  • Immediate Response – Designed for high-level technique and expression under the bow or in fast passages.

  • Blend of Warmth & Brilliance – Suits both darker and brighter instruments, making it highly versatile.

Why Players Love It:

  • Powerful and projecting without being harsh

  • Smooth string crossings and bow changes

  • Exceptional durability and tuning stability

  • Ideal for soloists, orchestral leaders, and discerning chamber musicians

Made in Austria • Trusted Worldwide


Peter infeld set PI101 with Tin E


E String: Steelcore/ Plantinum Wound
A String: Synthetic Core - Aluminium Winding - Ball End
D String: Synthetic Core - Silver Winding - Ball End 
G String: Synthetic Core - Silver Winding - Ball End


At strings outlet ,we are dedicated to offering only the finest violins and bows, each carefully selected from trusted, high-quality sources. Our selection process involves a meticulous evaluation of every violin and bow, with a deep understanding that the woods used for each are distinct and require specialized knowledge. We personally pick and select the violins and bows, ensuring that every piece meets our exacting standards. For violins, we prioritize exceptional craftsmanship, tonal quality, and playability, sourcing from luthiers who use the best tonewoods available. For bows, we focus on the quality of the stick, whether it's pernambuco or carbon fiber, and the balance and response it provides. This hands-on, selective approach guarantees that every violin and bow in our collection offers superior sound and performance, allowing us to provide instruments and bows that inspire musicians at every level.