Courtois BB 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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The Confluence Range: A Summit Collaboration at Antoine Courtois
The Confluence series is the result of a demanding collaboration between trumpeter Clément Saunier, artisan-creator Adrien Jaminet, and the Antoine Courtois Research and Development teams. The goal is clear: to offer trumpets with a strong character, combining a richer sound and controlled projection, while maintaining great ease of play and flawless intonation. True to the brand's reputation, Confluence aims for a refined sound signature, typical of the French tradition.
For Which Musicians and Styles?
In B-flat, this trumpet is intended for musicians seeking a versatile and expressive instrument: advanced amateurs, conservatory students, and professionals will find a relevant balance between comfort and demand. Thanks to its projection and intonation, it adapts equally well to classical (orchestra, chamber music), jazz, pop, or fanfare ensembles where presence and stability are essential.
Sound and Design
The Confluence emphasizes a dense timbre and direct projection, while maintaining a natural playing feel. Its medium-large bore (11.65 mm) promotes sound breadth and openness without sacrificing attack precision. The handmade, one-piece bell contributes to vibration coherence and register homogeneity, while the lacquered finish provides a sober aesthetic and a pleasant feel in the hand. The Monel pistons, valued for their durability, contribute to smooth and reliable action over time.
Recommended Compatible Accessories
To preserve performance over time, a trumpet maintenance kit (piston oil, slide grease, cleaning brush) is a logical complement. The instrument is delivered with a backpack case for 2 trumpets, providing a practical transport solution for rehearsals and concerts.
Technical specifications
| Level | Professional |
| Tone | Bb |
| Body material | Varnished brass |
| Color | Yellow |
| Finishing | Varnished |
| Key | B-flat |
| Bore | medium-large, 11.65 mm |
| Leadpipe | standard |
| Tuning slide | brass |
| Finish | lacquered |
| Bell | handmade, one piece, diameter 123 mm |
Questions frequently asked
What is the bore size of the Courtois Confluence AC335BML-1-0 trumpet?
The medium-large bore of 11.65 mm promotes a full sound and direct projection while maintaining precision at the attack.
Is the Confluence B♭ suitable for jazz and classical music?
This model is intended for advanced musicians, conservatory students, and professionals. Its design aims for a dense timbre and stable intonation suitable for classical, jazz, pop, or brass band settings.
What is the bell of this Antoine Courtois trumpet?
The bell is handmade in one piece and features a diameter of 123 mm. This construction contributes to the uniformity across registers. It is paired with a standard leadpipe.
What materials and finish are used?
The body and tuning slide are made of brass, with a yellow lacquer finish. The three valves are made of Monel for smooth and durable action.
What case is supplied with the trumpet?
A backpack-style case capable of holding two trumpets is provided for instrument transport.



