Thomastik CELLO STRINGS RONDO SET MEDIUM
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Information
Information
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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RONDO: the 2022 innovation designed for projection and finesse
Launched as a 2022 innovation, the RONDO series targets a demanding balance: a clarity that carries, a well-centered power, and a more velvety texture to avoid any harshness. The set is designed to offer a sense of continuity in playing, with a clear sonic identity and stable emission.
For which cellist and styles?
This set is particularly aimed at intermediate to advanced cellists seeking a responsive string capable of supporting nuanced dynamics and articulation work, while maintaining a beautiful roundness. The "clear and velvety" signature suits the classical repertoire, chamber music, and any situation where sound clarity and attack precision are priorities.
Sound characteristics
With their carbon steel core (A and D) and stability-oriented design, these strings promote an immediate response and a sharply focused sound. The G and C strings with a spiral core and chrome tungsten winding provide density and foundation in the lower register while maintaining good definition. The overall aim is a clear, powerful, and centered output, with a tonal color described as velvety and a smooth transition between registers.
Technical specifications
| Format | 4/4 |
| Tension | Medium |
| Type of cord attachment | Ball end |
| Category | Cello |
| Classification | Medium |
| 1st cord pull | 41 |
| Nbr of strings | 4 |
| Spun | Chrome |
| Material | carbon steel |
| Special feature | ball |
| Color | Grey |
| Sound characteristic | very clear, powerful, and focused, with a velvety tonal color |
| Descriptors | clear and velvety |
| Transition | smooth |
| Response | immediate |
| A string RO041 | carbon steel core, multi-alloy winding, tension 18.8 kg (41.1 lbs) |
| A string RO041XP | carbon steel core, multi-alloy winding, tension 18.1 kg (39.9 lbs) |
| D string RO042 | carbon steel core, multi-alloy winding, tension 14.3 kg (31.5 lbs) |
| G string RO043 | spiral core, chrome tungsten winding, tension 14.3 kg (31.5 lbs) |
| C string RO044 | spiral core, chrome tungsten winding, tension 13.8 kg (30.4 lbs) |
Questions frequently asked
Are Thomastik Rondo Medium strings compatible with a 4/4 cello?
This set is designed for a 4/4 cello and includes four ball-end strings.
What sound do the Rondo cello strings produce?
The design promises a clear and focused sound, with a velvety tonal color. The response is described as immediate and the transition between registers as smooth.
What materials make up the A and D strings in the Rondo set?
References RO041 and RO042 use a carbon steel core with a multi-alloy winding. The A string RO041 has a tension of 18.8 kg, compared to 14.3 kg for the D string RO042.
Do the G and C Rondo strings have chromium winding?
The G string RO043 and C string RO044 combine a steel core with a tungsten chrome winding. Their announced tensions are 14.3 kg and 13.8 kg respectively.
Which cellists is this medium tension set intended for?
This medium tension is aimed at intermediate to advanced cellists. It is designed for classical repertoire and chamber music, where nuance and attack precision are sought.



