Bach BTB411ML
Bb/F dual-bore tenor trombone · intermediate · current
Intermediate/step-up dual-bore (medium-large/large) tenor with open-wrap F attachment; pro feel at lower cost
| Type | tenor |
|---|---|
| Key | Bb/F |
| Bore class | dual |
| Bore size | .525/.547″ |
| Valve configuration | F attachment |
| Valves | 1 |
| Rotor type | traditional rotary |
| Wrap | open wrap |
| Bell diameter | 8.5″ |
| Bell material | yellow brass |
| Slide | chrome-plated nickel silver inner tubes; yellow brass outer slide (.525/.547); nickel crook |
| Finish | clear lacquer |
| Level | intermediate |
| Era | current |
Features: Dual .525/.547 bore; soldered bell bead; includes Bach 6-1/2AL small-shank mouthpiece