Thomastik Peter Infield 3/4 D – Medium

A D String Designed for the Demands of the Orchestra

This Peter Infeld D string is intended for double bassists seeking an immediate response, excellent stability and controlled tonal presence. Designed for 3/4 double basses with a vibrating length between 1030 and 1100 mm, it fits naturally into an orchestral tuning setup.

Its construction is based on a proven spiral core combined with a specific blend of materials. This design aims to provide a consistent playing feel, reliable performance throughout rehearsals and sufficient projection to maintain its place within the double bass section.

Which Double Bassists and Playing Styles Is It For?

This string is particularly well suited to advanced intermediate, experienced and professional musicians looking for an expressive, responsive D string. It naturally finds its place in orchestral repertoire, chamber music, classical ensembles and situations where bow precision is essential.

Its focused, assertive character in the midrange helps the double bass remain clear within an ensemble. It can also suit players who want to reinforce the definition of their midrange without losing the necessary foundation in the low register.

The Sound

The Peter Infeld D string delivers a rich, powerful and balanced tone. Its midrange stands out with a clear presence, helping to highlight articulations and add depth to musical phrases. The sound remains focused, with a distinctive character that promotes good clarity in ensemble passages.

The spiral core contributes to a direct, even response under the bow. Attacks gain precision, while the sustain allows notes to be prolonged with stability. The chrome steel winding contributes to the string's durability and supports a clear, consistent and well-sustained tonal result.

Depending on the instrument's setup, the bow used and the rosin selected, this string can bring out the double bass's natural depth while preserving clean articulation. Its solid low end complements its generous midrange to provide a balanced musical response across the entire register of the D string.

Technical specifications

Format	3/4	Category	double bass
Tension	Medium	Nbr of strings	1

Instrument	acoustic double bass	Tension in pounds	64.6 lbs
Compatible size	3/4	Sound	powerful, elegant and rich in tonal colors
Compatible vibrating length	1030 to 1100 mm	Highlighted register	focused and assertive mids
Tuning	orchestral tuning	Response	excellent under the bow
String	D	Low end	present and well controlled
Core	spiral core	Sustain	excellent note sustain
Winding	chrome-plated steel	Reliability	high for regular use
Material combination	Peter Infeld proprietary design