Thomastik Peter Infield 3/4 A - Medium

A Peter Infeld string designed for orchestral demands

The Peter Infeld range is designed for double bassists seeking a string that combines presence, depth and tonal refinement. This 3/4-size A string for double bass features a modern design built around a proven spiral core, complemented by a new combination of materials. It is intended to deliver a stable, expressive and sufficiently dense response to meet the demands of both orchestral playing and intensive instrumental practice.

Which double bassists and applications is it suited to?

The Peter Infeld PI63 A string is particularly well suited to upper-intermediate to professional musicians looking to develop a full, focused and nuanced sound. Its balanced character makes it possible to work precisely on orchestral passages, classical repertoire, chamber music or situations requiring clear bow articulation. Its tonal sustain and projection also make it a relevant option for double bassists seeking a reliable response across the entire useful range of the A string.

The sound

Thanks to its spiral core and chrome steel winding, this double bass string delivers a tone that is rich, focused and solid. The midrange comes through with a confident presence, helping to define attacks and ensuring the instrument stands out in an ensemble. The low end retains its substance, while the vibration remains sustained after the attack. Under the bow, the response is direct and controllable, offering a reassuring sense of stability for shaping nuances, dynamic changes and articulations.

Technical specifications

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

Type	A string	String reference	PI63
Instrument	acoustic double bass	Core	spiral-wound
Compatible size	3/4 double bass	Winding	chrome steel
Tuning	orchestral	Design	proven spiral-wound core with a new combination of materials
Compatible vibrating string length	1030 to 1100 mm	Imperial tension	64.6 lbs