Yamaha 14C4 GP Gold/Silver-Plated (Trumpet)
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Manufacturer Information
Yamaha
https://www.yamaha.com
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Yamaha Music Europe GmbH
Email: info@yamaha.de
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The GP Series: A Yamaha Mouthpiece Tailored for Sections
Designed by Yamaha to meet the expectations of advanced players, the GP series stands out with a precision-focused approach: carefully crafted geometry, a centered sound output, and meticulous finishing. Its positioning is clearly aimed at musicians playing in ensembles and orchestras, where stability, intonation, and timbre consistency make all the difference.
For Which Musician and Playing Contexts?
This Yamaha GP mouthpiece is primarily intended for advanced and professional musicians seeking consistent response and a sound that "holds" within the section. It is particularly well-suited for orchestras, ensembles, and any situation requiring projection of a clean, homogeneous, and well-focused sound without dispersion.
Sound and Design
The cup with a 16.88 mm diameter combined with a standard depth aims for versatile balance: natural projection, solid register support, and a familiar feel for most trumpeters. The 3.65 mm rim width contributes to structured projection and clear articulation, while the semi-narrow backbore promotes a precise and focused sound. Regarding comfort, the semi-flat rim and standard thickness provide stable support without overly restricting flexibility, useful for long rehearsals and performances.
Recommended Compatible Accessories
To preserve the finish (gold-plated or silver-plated) and maintain hygiene, a mouthpiece cleaning spray and a mouthpiece swab are generally recommended. If you already use a case suited to your trumpet, a mouthpiece slot or a small protective pouch helps limit micro-scratches during transport.
Technical specifications
| Cup depth | Medium | Finishing | Silver - gold-plated |
| Color | Multicolor | ||
| Cup diameter | 16.88 mm | Rim thickness | standard |
| Rim width | 3.65 mm | Finish | gold-plated / silver-plated |
| Backbore | semi-narrow | Usage | popular in ensembles and orchestras |
| Rim contour | semi-flat | Product subject to a specific withdrawal right | for hygiene reasons, if opened, it must be free of any signs of use to qualify for withdrawal and be eligible for a refund or exchange. |
Questions frequently asked
What is the cup diameter of the Yamaha 14C4 GP mouthpiece?
The cup has a diameter of 16.88 mm and an average depth, providing a natural sound production and balanced response across the range.
Is this mouthpiece suitable for orchestral playing?
Its design is aimed at ensembles and orchestras. The 3.65 mm bore contributes to a focused projection and clear articulation. The semi-narrow backbore supports a precise and centered sound within the section.
What comfort does the Yamaha 14C4 GP's semi-flat rim offer?
The semi-flat rim, with standard thickness, provides stable support while maintaining the flexibility needed for rehearsals and performances.
What is the finish of this trumpet mouthpiece?
The finish combines a silver-plated surface with gold plating, as specified by the GP gold/silver-plated designation.
How should a gold and silver-plated mouthpiece be cleaned?
A mouthpiece cleaning spray and a mouthpiece brush are recommended for hygiene and finish maintenance. A protective pouch or a dedicated slot in the case helps prevent micro-scratches during transport.



