Courtois C CONFLUENCE - LACQUER
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Manufacturer Information
Courtois
https://www.a-courtois.com
contact@buffetcrampon.com
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Buffet Crampon S.A.S.
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Confluence: a Trumpet Born from an Exceptional Collaboration
The Confluence is part of a modern design approach, driven by the meeting of trumpeter Clément Saunier, artisan-creator Adrien Jaminet, and the Antoine Courtois Research and Development teams. The goal is clear: to extend a historical know-how while meeting the current demands of musicians, with particular attention to the sound aesthetics associated with the "French School."
Within the Antoine Courtois range, the Confluence aims for an ambitious balance: a richer sound, projection without acoustic compromises, and ease of play that does not sacrifice precision or control. This philosophy makes it a trumpet capable of adapting to the most varied contexts, from orchestra sections to more soloist formations.
For Which Musicians and Repertoires?
In the key of C, this trumpet is primarily aimed at intermediate to advanced trumpeters seeking a reliable response and a refined sound identity. Professional musicians will find a coherent working base for performances where intonation, homogeneity, and color are as important as power.
Regarding styles, its versatility allows it to be comfortable in classical (orchestra, chamber music, soloist), but also in pop, film music, or large ensembles when a present, elegant, and well-centered sound is desired. The medium bore favors balanced playing: enough density to "fill" the hall, while maintaining flexibility for phrasing and nuance.
Sound and Design
The Confluence is designed to offer a rich and singing timbre, with a clear but controlled projection. The medium bore (11.40 mm) contributes to this compromise: it helps stabilize the air column, facilitates attack, and maintains a good dynamic range without making the instrument too demanding. The result: comfortable emission, a sense of control in the midrange, and a gradual rise in the upper register.
The handmade one-piece bell contributes to the homogeneity and coherence of the sound by promoting even diffusion. The reverse leadpipe and the rose brass tuning slide add a dimension of flexibility and warmth, useful for rounding the spectrum and keeping a lively response. The lacquer finish protects the instrument daily while preserving a classic and elegant aesthetic.
Recommended Compatible Accessories
For maintenance and consistent playing, you can pair it with essential universal trumpet accessories: valve oil, slide grease, cleaning brushes (slides and mouthpiece), and a microfiber cloth to preserve the lacquer finish. A trumpet stand is also a practical addition for rehearsals and on stage.
Technical specifications
| Level | Professional | Color | Yellow |
| Tone | C | Finishing | Varnished |
| Body material | Varnished brass | ||
| Key | C | Finish | lacquered |
| Bore | medium, 11.40 mm | Bell | handmade, one piece, 123 mm diameter |
| Tuning slide | rose brass | ||
Questions frequently asked
Is the Courtois Confluence AC335CM-1-0 a trumpet in C?
This trumpet is tuned in C and is suitable for intermediate to professional level trumpet players.
What is the bore size of the Confluence trumpet?
The medium bore measures 11.40 mm. This setup promotes a stable air column, with easier attack and balanced response.
What sound does the handmade one-piece bell provide?
The handmade one-piece bell has a diameter of 123 mm. It contributes to an even projection and a rich timbre, oriented towards the aesthetics of the French School.
Is the tuning slide on this model reversed?
The reversed tuning slide is combined with a rose brass slide to preserve flexible response and a warmer tone color.
Which accessories should be used to maintain the lacquered finish?
A microfiber cloth can be used for the lacquered brass, along with piston oil and slide grease. Cleaning brushes for slides and mouthpieces also allow for regular maintenance.



