Detail 01
32mm cup diameter; 8.6mm throat
These are the supplied dimensions for the 2.5CC.

Independent shopping perspective
For CC tuba players, the Heritage Series 2.5CC is a medium-large Helleberg-type mouthpiece with a 32mm cup diameter and 8.6mm throat. Its backbore received specific attention for intonation on CC tubas, making that instrument context central to the model’s purpose. Heritage construction combines a thin 1.2mm cup wall near the rim with greater metal mass at the cup bottom; the series is described as rich, responsive, and easier in the high register. The rim and cup are gold-plated over a silver-plated body.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
These are the supplied dimensions for the 2.5CC.
Detail 02
The 2.5CC is identified as a medium-large Helleberg-type mouthpiece.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Its backbore design is described as supporting intonation on CC tubas.
It is a medium-large Helleberg-type mouthpiece.
Reference
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