Our PETER INFELD^® strings for cello make you shine in many different ways. 

The strings are very reliable and help you sound great with minimal effort. The strings’ tremendous sound colors stay controllable at all times. They have a centered tonal core and sound especially powerful in the mids. We have developed these strings for remarkable balance and outstanding projection that lets your sound shine all the way to the farthest corner of the room. 

From Bernhard Rieger (Director of String Development for cello & bass at Thomastik-Infeld)

To create these strings, we spent several years developing and testing different prototypes. My goal was to create a specifically warm, rich basic color with open, ringing, and easily controlled overtones – all of which produce tremendous sound colors. The strings’ centered tone and powerful mid-range mean they offer a reliable haptic feel in both hands, making them exceptionally playable. At the same time, they also give the player outstanding projection. The result is a very reliable string set that delivers a beautiful tone with minimum effort. We have been delighted to hear professional cellists around the world calling the Peter Infeld cello set a "game changer" and a "new benchmark."

The A and D strings are made with a steel core, and wound using new production methods I developed after years of experimentation. During the development process, I was always in search of the richest tonal colors along with a fundamental warmth. The combination of winding materials was chosen specifically for the noble and powerful singing timbre in the top strings.

The C and G strings are based on the legendary Spiral Rope, which Thomastik-Infeld invented for our Spirocore strings decades ago. The design of the twisted steel wires is so ingenious and innovative that it is still the best option to this day. It gives the Peter Infeld strings the power and growl they need for maximum projection. Their tungsten winding makes them thinner and more responsive, but their dark, yet resonant timbre helps to provide a "meaty and substantial" left-hand feel.

Cellists will find a very centered tonal core with plenty of overtones and warmth. This set projects remarkably well through its strong mid-frequencies: its strong, dark timbre is "spiced up" with brilliance and a bit of "edge," allowing an exceptional range of easily controllable sound colors to unfold. I would say the Peter Infeld cello strings have found a "sweet spot" between dark and bright, shining with a uniquely balanced richness.

Thanks to their easy playability, these strings are suitable not only for top-tier professionals but also for anyone looking to enrich their cello’s sound. We have tested them with all types of players across all different skill levels, and even we were surprised by the overwhelmingly positive feedback. The strings also work well on a wide range of instruments. Both old and new instruments benefit from the extra boost of color and refinement.

However, for very dark instruments I would recommend the brighter Versum Solo (also paired with Spirocore tungsten G+C), while very bright instruments would benefit from the dark color offered by the Rondos.