Thomastik STRINGS CONTRABASSES SPIROCORE SPIRAL CORE SMOOTH

A reference designed to last, at the heart of the range

Described as "the reference string," these double bass strings embody a standard sought by many bassists: effective vibration, playing stability, and durability over time. Their design with a flexible core made of multi-strand spiral wires aims to provide generous vibration longevity while maintaining a controlled feel, even when frequently alternating between different attacks and dynamics.

For which bassist and styles?

This set is especially suited for musicians seeking a versatile string without limiting themselves to a single aesthetic. With the bow, the low inertia helps achieve a quick sound onset and easier shaping of nuances. In pizzicato, the long vibration length enhances note presence and sustain, making it well-suited for jazz, contemporary music, and any situation where a clear and carrying low register is expected.

The choice between soft tension and medium tension allows adapting the feel: soft emphasizes left-hand comfort and a more elastic sensation, while medium provides more resistance under the fingers and a more "grounded" response in certain contexts (attack, projection, stability). These strings are intended for a 4/4 double bass with a scale length up to 1100 mm, covering most standard-format instruments.

Sound characteristics

The multi-strand spiral flexible core construction directly influences the tonal personality: it promotes prolonged vibration (sustain) and a note sensation that "settles in" and then develops with beautiful continuity. The low inertia results in a more immediate response to the attack, useful for clearly articulating note beginnings, varying accents, and maintaining precision during string changes.

With the bow, this architecture aims for controlled grip and a sound that remains musical throughout the bow stroke, with good capacity to support phrasing. In pizzicato, it delivers a note that holds, helping to fill the sonic space and maintain a stable rhythmic foundation. Overall, it offers a relevant balance for those seeking a string that is both expressive, durable in vibration, and comfortable for daily use.

Recommended compatible accessories

To get the best out of these strings daily, a chromatic tuner (or tuning app) and a soft cloth to wipe the strings after playing are simple choices compatible with any 4/4 double bass. If you play regularly with the bow, a rosin suited to your practice (orchestra, soloist, dry or humid hall) can also help stabilize grip and sound consistency.

Technical specifications