Thomastik STRINGS CONTRABASSES SPIROCORE SPIRAL CORE SET 3874,0
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Information
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Manufacturer Information
Thomastik
https://www.thomastik-infeld.com
info@thomastik-infeld.com
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GEWA music GmbH
Email: info@gewamusic.com
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An "Orchestra Tuning" Standard: The Balance Sought by Many Double Bassists
The choice of an orchestra tuning meets a simple expectation: to obtain a homogeneous sound foundation, capable of adapting to varied contexts (daily practice, ensemble, section playing, studio). This set in medium tension aims for an effective compromise: enough resistance to support sound production, while maintaining comfortable flexibility for the left hand. In 1/4 size, it is intended for small-sized double basses with a scale length not exceeding 905 mm, ensuring a good feel under the fingers and stable intonation across the entire range.
For Which Musician and Styles?
This string set is particularly suited for beginner to intermediate double bassists seeking a reliable string that is easy to set into vibration and pleasant over time. The low inertia helps achieve a more immediate response, facilitating bowing techniques (detached, legato, dynamics) as well as pizzicato playing (clear attack, consistency). Its "all-around" profile suits both classical and orchestral repertoires as well as more cross-genre practices alternating arco and pizz, provided the 1/4 size and indicated scale length are respected.
Sound Characteristics
The flexible multi-strand spiral core directly influences the tonal character: the string responds quickly, with a sense of flexibility that promotes vibration initiation and attack precision. The mention of long musical vibration period translates into comfortable sustain and consistent note holding, useful for supporting the line within an ensemble. Thanks to the low inertia, the bow grips more responsively, helping to build a stable sound at both soft and loud dynamics. In pizzicato, the response remains crisp, with a good balance between definition and fullness, without requiring excessive right-hand strength.
Technical specifications
| Format | 1/4 |
| Tension | Medium |
| Type of cord attachment | Loop end |
| Category | Cello |
| Nbr of strings | 4 |
| Material | Spiral core |
| Special feature | short scale |
| Color | Grey |
| Size | 1/4 |
| Recommended scale length | up to 905 mm (35.6 inches) |
| Tuning | orchestra |
| Core type | flexible core |
| Structure | multi-strand spiral winding |
| Behavior | low inertia, long vibration |
| Recommended playing | arco and pizzicato |
| G | 25.0 kg / 55.1 lbs |
| D | 25.0 kg / 55.1 lbs |
| A | 26.0 kg / 57.3 lbs |
| E | 27.5 kg / 60.6 lbs |
| Complete set | 103.5 kg / 228.1 lbs |
Questions frequently asked
Are these strings suitable for a 1/4 double bass?
This set is designed for a 1/4 size double bass, with a maximum scale length of 905 mm (35.6 inches). The short scale version maintains a feel adapted to smaller-sized instruments.
What is the tension of the Spirocore 1/4 3874.0 strings?
The total stated tension is 103.5 kg, distributed as 25.0 kg for the G and D strings, 26.0 kg for the A, and 27.5 kg for the E.
Is the Spirocore 1/4 string set suitable for both bowing and pizzicato?
The flexible core made of multiple spiral-wound wires provides low inertia. The bow benefits from a responsive reaction and stable attack. For pizzicato, the long vibration promotes a clear note with good sustain.
What type of tailpiece attachment is used on these strings?
Each string is equipped with a loop-end tailpiece attachment. This system should match the type of tailpiece installed on the double bass.
What tuning is expected for this set of 4 strings?
The tuning is the standard orchestral type on four strings: G, D, A, and E. The tension is indicated as medium gauge.



