Thomastik Peter Infield 4/4 D - Medium

A European string designed to enrich cello playing

Made in Europe, this Peter Infeld D string reflects a quest for refined tone and playing comfort. The D string occupies an essential position on the cello: it provides the link between the depth of the C string and the brighter clarity of the A string. It must therefore offer seamless tonal continuity, reliable response and enough character to remain expressive across the entire fingerboard.

Its balance of power, tonal richness and elegance makes it a relevant choice for cellists who want to enhance their instrument's personality without sacrificing precision. Its focused tonal core promotes a clear, direct and stable note, including when the playing calls for greater intensity.

For cellists seeking an immediate response

This string is primarily intended for advanced intermediate musicians, conservatory students and accomplished cellists looking for a responsive and expressive D string. Its broad dynamic range allows for greater freedom when working on contrasts, from delicate passages played near the key to more sustained attacks performed near the bridge.

It is particularly well suited to classical, Romantic and contemporary repertoires, as well as chamber music and orchestral playing. Its quick response helps musicians maintain clear articulation in rapid passages, bow changes and demanding dynamics. It may also appeal to performers seeking a direct response under the bow without sacrificing tonal richness.

The sound

Thanks to its carbon steel core and multi-alloy winding, this D string produces a powerful, focused sound rich in nuance. The middle register benefits from a pronounced presence, helping the cello retain a full and well-defined voice in melodies, double stops and passages played in position. The note remains centered, with a sense of stability that supports intonation and bow control.

The multi-alloy winding contributes to the harmonic richness and overall elegance of the tone. The string therefore retains plenty of sonic substance while allowing the instrument's own characteristics to emerge: the warmth of a spruce top, the depth of a maple back and ribs, or the natural clarity of a brighter-sounding cello. Its responsiveness makes it easy to shape the sound's color according to bow pressure, speed and contact point.

With its extended dynamic range, it supports pianissimo playing with finesse and responds authoritatively when the performance calls for greater projection. This tonal versatility makes it a D string well suited to cellists who want to maintain expressive, precise and lively playing in a variety of musical contexts.

Technical specifications

Format	4/4	Category	Cello
Tension	Medium	Nbr of strings	1

String	D	Sound character	powerful, elegant and rich
Instrument	cello	Sound core	focused and powerful in the midrange
Recommended level	demanding, advanced or experienced player	Response	fast
Made in	Europe	Dynamic range	wide
Core	carbon steel	Use	solo playing, chamber music, orchestra, and classical or contemporary repertoire
Winding	multi-alloy