Vincent Bach 50A3 twin rotor bass trombone

Vincent Bach
£ £5,950.00
Ref: 50A3

The Bach Stradivarius 50A3 is a twin 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
  • Twin in-line independent Hagmann rotors
  • Open wrap
  • Yellow brass outer slide
  • Bach 1½G mouthpiece
  • Woodshell case

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.

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