The same cup, throat, and backbore as No. 6 1/2AL small shank tenor trombone but with bass shank. It requires a well developed embouchure. Medium deep cup, 25.40mm diameter, .261" throat, 420 backbore, medium wide, well-rounded rim.
| Condition | Mint (Used) Mint items are in essentially new original condition but have been opened or played.Learn more |
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