Detailed specifications for the Bach trombone mouthpiece line. Compare cup depth, rim diameter, throat, backbore, and intended use across models.
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Bach Megatone Trombone, Small Shank
| Model No. | Depth of Cup | Approx. Cup Dia. | Rim Shape | Description |
|---|---|---|---|---|
| 4 | Medium | 26.00mm | Medium wide, well rounded. | Very large cup; principally used by players having healthy, strong embourchure. |
| 5 | Medium | 25.50mm | Medium wide, semi-flat. | For players with good, natural embouchures. Rather large cup. Produces a full, mellow sonorous tone. |
| 5GS | Medium | 25.50mm | Medium wide, semi-flat. | Same as No. 5 but with larger 17/64" throat and 420 backbore. |
| 6 1/2A | Medium deep | 25.40mm | Medium wide, well rounded. | Slightly larger than medium with standard size throat and backbore. Rich, compact tone of large volume. |
| 6 1/2AL | Medium deep | 25.40mm | Medium wide, well rounded. | The same rim and cup as No. 61/2A, but with a larger 17/64" throat and 420 backbore for trombonists who strive for a Teutonic tone quality. |
| 6 1/2AM | Medium deep | 25.40mm | Medium wide, well rounded. | Symphonic model tenor trombone mouthpiece features the same cup and rim as No. 61/2A, but with symphonic throat and backbore. |
| 7C | Medium shallow | 24.75mm | Medium wide, not too sharp. | For players who prefer a medium-large cup to assure a large volume of tone. Rather shallow cup produces great brilliancy. |
| 11C | Medium shallow | 24.70mm | Medium wide | Medium shallow cup produces a brilliant ringing tone of large volume. |
Specifications sourced from manufacturer published data. For corrections, please contact us.