Symphony double rotor bass with dependent system.
Key of B. .562" primary bore, .580" bore through rotor sections, stacked rotors function as a dependent system, 9-1/2" annealed rose brass bell, 3 interchangeable mouthpipes, chromeplated inner slides, lacquer finish. Comes with 1-1/2G mouthpiece and deluxe wood shell case.
- Bell: 9.5 inch annealed Rose brass
- Bore: .562 (.580" rotor section bore)
- Proficiency Level: Professional
- Slide: Regular
- Valve: Double