Vincent Bach 50A3 double rotor bass trombone
Vincent Bach https://www.rosehillinstruments.co.uk/p/50A3/bass-trombones/vincent-bach/vincent-bach-50a3-double-rotor-bass-trombone£ £9,500.00
Ref:
50A3
Not currently available
The Bach Stradivarius 50A3 is a double rotor bass trombone with open wrap F and G-flat attachments which can be accessed independently using two Hagmann* rotary valves.
- Lacquer finish
- Bore size: 0.562 in. (14.27 mm)
- Key of B-flat/F/G-flat
- 9½-inch yellow brass bell
- Double in-line independent Hagmann* valves
- Open wrap
- Yellow brass outer slide
- Bach 1½G mouthpiece
- Woodshell case
Also available in the Bach 50B3 range:
| Wrap/valve | Bell diameter (inches) | |
|---|---|---|
| 9½ | 10½ | |
| Closed / standard | 50B3 | 50B3L |
| Open / standard | 50B3O | 50B3LO |
| Open / Hagmann* | 50A3 | 50A3L† |
| Open / ‘Infinity’ axial-flow | 50AF3 | 50AF3L |
Other model variant: †LT50A3LG
*The Hagmann free-flow valve appeared in the early 1990s as a further development away from the traditional rotary valve, following the introduction of the more complex Thayer axial-flow valve in the 1980s. The Hagmann design minimises distortion of the air flow inside the valve, resulting in a rich, full sound, and is easy to maintain using regular valve oil. Vincent Bach introduced the Hagmann valve into their Stradivarius trombone range in 1999.
