Bach L551 5MV
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Information
Information
Manufacturer Information
Bach
https://www.bachbrass.com
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Safety manager:
GEWA music GmbH
Email: info@gewamusic.com
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A Mouthpiece Born from Expertise That Became a Reference
The Bach brand owes its reputation to Vincent Bach, musician and engineer, who began producing mouthpieces in 1918 with a precision standard that became iconic. Very quickly, Bach instruments established themselves among brass players, to the point of being associated with a "Stradivarius" standard for the trumpet. Even today, Bach mouthpieces are chosen for their consistency and sonic identity, and the Commercial series continues this tradition by targeting trumpeters who want more density and efficiency in the upper register.
For Which Trumpeter and Styles
This mouthpiece is aimed at intermediate to advanced musicians, as well as professionals seeking a performance-oriented tool in the upper range. It is particularly suitable for contexts demanding projection, impact, and endurance : big band, modern jazz, pop, stage music, marching bands, and sections requiring brightness. It remains relevant in classical settings when the goal is to maintain a full sound with better ease in the high register.
Sound and Design
The modified V-cup provides a more "centered" air column sensation and helps support attack stability in the upper register. The 16.54 mm diameter offers an interesting balance between comfort and control, while the medium wide rim, with a slightly flatter top than a standard 5C, promotes endurance and stability. The choice of tip 27 and shank 24 contributes to a clear response and effective projection, with an exterior design combining elements from the Standard and Méga tone series for a more stable playing feel.
Recommended Compatible Accessories
If you wish to preserve the silver-plated finish and limit oxidation, a microfiber cloth dedicated to brass instruments is a simple and safe choice. For transport, a universal hard mouthpiece case effectively protects against shocks inside your gig bag or case.
Technical specifications
| Cup depth | Medium deep | Finishing | Silver |
| Color | Grey | ||
| Finish | silver-plated | Tip | 27 |
| Cup diameter | 16.54 mm | Shank | 24 |
| Rim shape | medium wide, top rim slightly flatter than the Bach standard 5C mouthpiece | ||
Questions frequently asked
Is the Bach L551 Commercial 5MV suitable for playing in the upper register?
The modified V-cup, size 27 rim, and 24 backbore are designed to support attack stability and efficiency in the higher register. This setup aims for a crisp response and strong projection.
What is the cup diameter of this mouthpiece?
The cup diameter is 16.54 mm, a dimension that seeks a balance between comfort and control.
For which styles is this trumpet mouthpiece appropriate?
This mouthpiece is suited for big band, modern jazz, pop, musical theater, and marching band. It can also be used in classical music when improved ease in the upper register is desired.
What feeling does the rim of the Bach 5MV provide?
Its medium-wide rim features a slightly flatter top compared to a standard Bach 5C mouthpiece. This shape promotes endurance and comfort.
How to protect the silver plating of the mouthpiece?
A microfiber cloth dedicated to brass instruments helps preserve the silver plating and limit oxidation. A universal hard case for mouthpieces protects against shocks during transport.



