Haag Brass

Haag Brass - BossBone - Tenor Trombone


The BossBone is equipped with a Bosc valve, a rotary valve with an open passage and only 80 ° rotation. This valve was developed and invented by Cristian Bosc in 2011, HAAG Brass was the first company to install this valve in trombones at all. The HAAG BossBones can be individually adapted and built to your needs.

  • Tuning: Bb/F
  • Bore: 13.9mm / .547”
  • Valve : Bosc-Rotary Valve
  • Thumb Lever: German- or Americanstyle
  • Bell Ø: 220mm / 8.661”
  • Bell: German- or Americanstyle, handhammered with or without german rim
  • Bell material : red brass, gold brass, yellow brass, bronze
  • changeable or fixed bell
  • Tuning Slide:  Gold brass, brass, copper, bronze
  • Inner slide: nickel silver, chrome-plated
  • Outer slide: gold brass, nickel silver
  • Finish:  lacquered
  • other finishes on request:  Matt lacquered, vintage style, silver-plated, gold-plated
  • Accessories: bag and HAAG 5B mouthpiece

Bell Options:

1. Screw Bell

2. Hand Engraved Bell

Options: BossBone Tenor Trombone
Options: BossBone Tenor Trombone