The 645G professional BBb tuba features a rotary valve configuration for a traditional Teutonic sound with the kind of precise intonation and easy playability only made possible by modern engineering expertise. It is characterized by a warm dark sound with an abundance of tonal colors.
Specs
| Model | YBB-645G |
| Key | Bb |
| Bell Material | Gold brass |
| Bell Diameter | 419mm (16 1/2") |
| Bore Size | 20.7mm (0.815") |
| Height | 1018mm |
| Valves | 4 rotary |
| Finish | Clear lacquer |
| Mouthpiece | BB-67C4 |
| Case | Included |