Bach MOUTHPIECE TRUMPET SYMPHONIC SERIES S651 1 1/4C 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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Vincent Bach: A Historical Reference in Brass Instruments
Born from Vincent Bach's high standards in the early 20th century, the brand has established itself as an essential reference for trumpet and trombone players. From the first mouthpieces made in 1918 to the iconic instruments, Bach built its reputation on a simple idea: to offer a reliable, precise, and musical tool capable of supporting both daily practice and the demands of the stage. The Symphonic series continues this tradition by seeking a broader playing sensation.
For Which Musicians and Styles?
This Bach Symphonic mouthpiece is aimed at intermediate to professional trumpet players who desire a freer response and a solid presence within ensembles. It is particularly suitable for classical, orchestral, wind band, and brass band contexts but remains relevant for versatility whenever a stable sound and good dynamic range are sought.
Sound and Design
The distinctive feature of Symphonic mouthpieces lies in a wider throat (air passage) and backbore (internal rear profile), while maintaining a cup equivalent to standard models. Practically, this promotes a more open response, a sensation of reduced resistance, and generous projection, at the potential cost of increased air demand depending on your approach.
Quick Glossary : the cup influences tone color and attack, the throat affects airflow and stability, and the backbore contributes to projection and sound "focus." The silver-plated finish provides a comfortable feel and a sober aesthetic typical of traditional mouthpieces.
Recommended Compatible Accessories
For compatibility reasons depending on brands and exact dimensions, it is best to choose accessories (case, brush/swab) according to your mouthpiece and instrument. If you wish, please specify your trumpet model and your usage (orchestra, brass band, jazz), and I will help you select perfectly suited references.
Technical specifications
| Cup depth | Medium | Finishing | Silver |
| Color | Grey | ||
| Series | Symphonic | Throat | 25 |
| Cup | 1 1/4C, design based on the 351 series | Finish | silver-plated |
| Backbore | 24 | Hygiene / Return Policy | product subject to specific conditions; if opened, it must be free of any signs of use to be eligible for refund or exchange. |
Questions frequently asked
What playing styles is the Bach Symphonic 1 1/4C mouthpiece suitable for?
This mouthpiece is designed for intermediate to professional trumpet players performing classical, orchestra, wind ensemble, or marching band music. The 1 1/4C cup has a medium depth.
What effect does the 25 rim size have on this trumpet mouthpiece?
The 25 rim, combined with the 24 throat, encourages a more open feel and generous projection. This setup may require a higher air flow depending on the playing approach.
Does the Bach S651 Symphonic feature a deep cup?
No, its 1 1/4C cup has a medium depth and is based on a design from the 351 series.
What is the finish of the Bach Symphonic mouthpiece?
The silver finish provides a comfortable feel and a classic appearance. The indicated color is grey.
Can the mouthpiece be returned after opening?
Specific hygiene conditions apply to this mouthpiece. After opening, it must remain unused and free of any marks to qualify for a refund or exchange. The choice of brush or cleaning swab should consider the dimensions of the mouthpiece and trumpet.



