Detailed specifications for the Bach trumpet mouthpiece line. Compare cup depth, rim diameter, throat, backbore, and intended use across models.
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| Model No. | Depth of Cup | Approx. Cup Dia. | Rim Shape | Description |
|---|---|---|---|---|
| 1 | Deep | 17.50mm | Medium thin | Extra large cup for players with a robust embouchure. Produces a great volume of tone. |
| 1B | Medium deep | 17.00mm | Medium wide | Large cup for players with a robust embouchure. Produces a warm tone with great volume. |
| 1C | Medium | 17.00mm | Medium wide | Large diameter medium cup, good for all-around use. |
| 1D | Medium shallow | 17.00mm | Medium wide | Medium shallow cup facilitates high register. |
| 1E | Shallow | 17.00mm | Medium wide | Facilitates high register. Excellent mouthpiece for soprano or piccolo trumpet. |
| 1-1/4C | Medium | 17.00mm | Medium wide | Large cup for powerful trumpeters. Compact tone of great carrying power. |
| 1-1/2B | Medium deep | 17.00mm | Medium wide, not too sharp. | Produces a scintillating, warm tone of large volume. For players with a well-trained embouchure. Comfortable rim contour. |
| 1-1/2C | Medium | 17.00mm | Medium wide, not too sharp. | Large diameter, medium cup, good for all-around use. |
| 2C | Medium | 16.50mm | Medium wide, lowered toward the outside. | Large cup; powerful, brilliant tone. For players with a good embouchure. |
| 2-1/2C | Medium | 16.40mm | Medium wide, lowered toward the outside. | Large cup; brilliant heroic, crisp C trumpet tone. For players with strong, muscular lips. |
| 3B | Medium deep | 16.30mm | Medium wide | A fairly large cup. The tone is warm and full. |
| 3C | Medium | 16.30mm | Medium wide | Fairly large cup with a full, rich tone. Good for all-around use. |
| 5B | Medium deep | 16.25mm | Medium wide, lowered toward the outside, med. sharp edge. | A precise rim and fairly large cup. The tone is warm and full. |
| 5C | Medium | 16.25mm | Medium wide, well rounded toward the inside and outside, fairly flat. | For players with a strong embouchure who do not like a sharp edge. The tone is lively and rich. |
| 7C | Medium | 16.20mm | Medium wide, lowered toward the outside. Medium sharp inside. Well rounded edge with a perfect grip. | Probably the most widely used model in the world. Its brilliant tone is preferred by school musicians and by artists. |
Specifications sourced from manufacturer published data. For corrections, please contact us.