Descripción
Same as the 13A4a but with the standard "c" backbore which allows a freer blowing feel.
Mouthpiece for Trumpet
- Like 13A4a with a larger backbore for a more open feel
- Cup diameter: 16.76 mm
- Cup depth: Flat
- Rim contour: semi-flat
- 27 Bore
- Backbore: Standard
- Finish: Silver-plated