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The Commercial series starts with a Classic cup, but uses a 27 throat, a 24 backbore and increases the outside mass. Commercial mouthpieces are only available in Shallow and Medium V shaped cups.
COMMERCIAL TRUMPET MOUTHPIECES
| Model No. | Depth of Cup | Approx. Cup Dia. | Rim Shape | Description |
|---|---|---|---|---|
| 3S | Shallow | 16.64mm | Medium wide. Slightly flatter rim face than standard Bach 3C. | Large diameter mouthpiece with a shallow cup. Special backbore helps facilitate the high register. |
| 5S | Shallow | 16.31mm | Medium wide. Slightly flatter rim face than standard Bach 5C. | Medium large diameter mouthpiece with a shallow cup. Special backbore helps facilitate the high register. |
| 7S | Shallow | 16.00mm | Medium wide. Slightly flatter rim face than standard Bach 7C. | Medium diameter mouthpiece with a shallow cup. Special backbore helps facilitate the high register. |
| 10HS | Shallow | 15.11mm | Medium wide. Slightly flatter rim face than standard Bach 10-1/2C. | Smaller diameter mouthpiece with a shallow cup. Special backbore helps facilitate the high register. |
| 3MV | Modified "V" | 16.87mm | Medium wide. Slightly flatter rim face than standard Bach 3C. | Large diameter mouthpiece with a modified "V" cup. Provides a fuller sound than the "S" cup. Special backbore helps facilitate the high register. |
| 5MV | Modified "V" | 16.54mm | Medium wide. Slightly flatter rim face than standard Bach 5C. | Medium large diameter mouthpiece with a modified "V" cup. Provides a fuller sound than the "S" cup. Special backbore helps facilitate the high register. |
| 7MV | Modified "V" | 16.23mm | Medium wide. Slightly flatter rim face than standard Bach 7C. | Medium diameter mouthpiece with a modified "V" cup. Provides a fuller sound than the "S" cup. Special backbore helps facilitate the high register. |
| 10MV | Modified "V" | 15.34mm | Medium wide. Slightly flatter rim face than standard Bach 10-1/2. | Smaller diameter mouthpiece with a modified "V" cup. Provides a fuller sound than the "S" cup. Special backbore helps facilitate the high register. |
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