Bach Classic 12 Tuba Mouthpiece Overview

The Bach 33512 12 Classic Tuba mouthpiece is a silver-plated tuba or sousaphone mouthpiece designed to give intermediate players a reliable, standardized fit and response, built on the long-established Vincent Bach Classic mouthpiece geometry.

Bach 33512 Tuba Mouthpiece Specifications

• Model: 33512
• Size: 12
• Instrument Type: Tuba / Sousaphone mouthpiece
• Cup: Medium
• Rim Diameter: 32.75 mm
• Finish: Silver plate

Condition 

Brand new in the original manufacturer’s packaging

Who the 33512 Tuba Mouthpiece is For

The Bach 33512 is a size 12, medium-cup tuba/sousaphone mouthpiece intended for intermediate musicians who want a traditional Bach Classic feel and a consistent, repeatable setup. The 32.75 mm diameter and medium cup place it in a practical middle ground for players who need clear response and a familiar embouchure interface without moving to an extreme cup depth or unusually large rim size.

Vincent Bach’s mouthpiece designs reflect an engineer’s approach to consistency and an artist’s focus on playable fundamentals, and the Classic series remains a common reference point for students, educators, and working players comparing sizes and feel across the category.

Common Questions About The Bach 33512 Tuba Mouthpiece

Is the Bach 33512 meant for tuba, sousaphone, or both?

The Bach 33512 is marketed for tuba and sousaphone use; it is a standard tuba-mouthpiece format suitable for either instrument when the receiver shank fit matches your horn.

What does “12” mean on this mouthpiece?

“12” is the Bach size designation within the Classic tuba mouthpiece lineup, identifying its rim and cup proportions; this model has a 32.75 mm diameter and a medium cup.

Is this a good choice for an intermediate player?

Yes. The 33512 is commonly chosen by intermediate musicians who want a stable, traditional mouthpiece baseline in a medium cup depth, without jumping to an unusually large or specialized setup.

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