Bach MOUTHPIECE TRUMPET SYMPHONIC SERIES S651 1 1/2C THROAT 25
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Information
Information
Manufacturer Information
Bach
https://www.bachbrass.com
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GEWA music GmbH
Email: info@gewamusic.com
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The Bach Symphonic Series: Tradition, Precision, and Excellence
Since the first mouthpieces made by Vincent Bach starting in 1918, the brand has established itself as a reliable choice thanks to a musical and "engineering" approach to manufacturing. The Bach Symphonic range uses the cups from the standard models while adopting a wider rim and shank : a design intended for musicians seeking stability, support, and a solid playing sensation.
For Which Trumpeter and Repertoires?
This Bach Symphonic 1 1/2C is aimed at intermediate to professional trumpet players who want a "symphonic" style mouthpiece for classical, orchestral, wind ensemble settings, and contexts where breadth, control, and endurance are prioritized. The 1 1/2C size remains a well-balanced choice for working on intonation and consistency across the entire range.
Sound and Design
The combination of the 1 1/2C cup and Symphonic design aims for stable sound production, good tone support, and even response. The rim 25 (transition to the bore) and shank 24 contribute to the overall feel: more "presence" under the lips and a well-supported air column, useful for clean attacks, note holding, and controlled dynamics.
Recommended Compatible Accessories
For maintenance, you can pair it with a trumpet mouthpiece brush/swab and a mouthpiece protective pouch (standard trumpet size) to prevent scratches and extend the finish's lifespan.
Technical specifications
| Cup depth | Medium | Finishing | Silver |
| Color | Grey | ||
| Series | Symphonic | Rim | 25 |
| Cup | 1 1/2C, design based on the 351 series | Finish | silver plated |
| Shank | 24 | ||
Questions frequently asked
What styles is the Bach Symphonic 1 1/2C mouthpiece suitable for?
This mouthpiece is aimed at intermediate to professional trumpet players performing classical, orchestra, or wind ensemble music. Its 1 1/2C cup and Symphonic design prioritize richness and control.
What effect does the 25 throat size have on this trumpet mouthpiece?
The 25 throat corresponds to the bore size. Combined with the 24 backbore, it contributes to a well-supported air column and clear articulation.
Is the 1 1/2C cup deep?
The 1 1/2C cup is medium depth and its design is based on the 351 series. This size is recommended for working on intonation and consistency across the entire range.
What is the finish of the Bach S651 Symphonic mouthpiece?
The silver plating is paired with a grey coloration. A standard trumpet mouthpiece pouch is provided to help protect this finish from scratches.
What accessories should be used with a mouthpiece with a 24 backbore?
A trumpet mouthpiece brush or swab can be used for maintenance. A standard trumpet mouthpiece pouch is also recommended. The backbore indicated on this model is reference 24.



