Thomastik STRINGS CELLOS SPIROCORE SPIRAL CORE SMOOTH S33W
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Information
Information
Manufacturer Information
Thomastik
https://www.thomastik-infeld.com
info@thomastik-infeld.com
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Safety manager:
GEWA music GmbH
Email: info@gewamusic.com
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A String Designed for Performance and Stability
Thanks to its flexible multi-strand core construction, this 4/4 C string aims for a balance between playing comfort, clear articulation, and vibration stability. The tungsten winding provides a rich and focused low register while maintaining good responsiveness.
Intended Use and Player Level
Suitable for cellists from advanced beginner to experienced levels, it works well for both pizzicato and arco playing. The choice of tension allows adjustment of finger resistance and power (soft) or bow pressure and projection (strong).
Sound Characteristics
On a C string, tungsten promotes a deep, carrying, and generally very clear low register. The flexible core enhances attack, smooth bow changes, and sound continuity, with a playing feel that is less "heavy" thanks to the low inertia.
Technical specifications
| Type of cord attachment | Loop end |
| Category | Cello |
| Draw | 4/4 |
| Nbr of strings | 1 |
| Spun | Tungsten |
| Material | Spiral core |
| Color | Grey |
| Format | 4/4 |
| String | C |
| Winding | tungsten |
| Core | flexible multi-strand spiral |
| Playing style | pizzicato or arco |
| Soft tension | 12.3 kg / 27.1 lbs |
| Medium tension | 13.5 kg / 29.8 lbs |
| Strong tension | 14.0 kg / 30.9 lbs |
Questions frequently asked
Is the Thomastik Spirocore S33W suitable for a 4/4 cello?
This C string is designed for a 4/4 size cello and is fitted with a loop end.
What sound does the tungsten winding bring to this C string?
The tungsten winding promotes a deep and resonant low register. The sound remains focused, with good clarity within an ensemble.
What is the difference between light, medium, and heavy tension?
The light version has a tension of 12.3 kg, providing a lighter resistance under the fingers. The medium tension reaches 13.5 kg. The heavy version goes up to 14.0 kg and favors stronger support and projection.
Is this cello string suitable for pizzicato playing?
The multi-filament spiral core is designed for both pizzicato and bowing, with a responsive attack.
For what level of cellist is the light tension string recommended?
It is suitable for cellists from advanced beginner to intermediate level. Its low inertia contributes to a lighter playing feel and smooth bow changes.



