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
- Deep Cup
- 25.4 mm Cup diameter
- .261" "G" throat
- 429 backbore
- medium wide, semi-flat rim shape
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