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Kuhnl & Hoyer Orchestra Signature Bass Trombone with Stacked Rotors


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Item Details

The K&H Orchestra Signature bass trombone is a premier instrument custom made in Markt Erlbach, Bavaria, Germany.  The modular system allows customization to your preferences.  This is one of very few bass trombones featuring the new Meinlschmidt Open-Flow rotary valves.  These rotors are remarkable, and when mated to a fine German instrument like the Kuhnl & Hoyer, it's captivating.

This model with the D rotor stacked on the F loop allows a more open neckpipe, improving pedal tone response and broadening the sound overall while adding a more open feel.  Some players may use a technique of "pre-selecting" the D valve so it's already engaged when they press the F.

Extra attention is paid to ergonomics.  The hand slide features a curved brace and the bell section has an additional curved brace behind the trigger paddle.  The second trigger paddle is curved to fit comfortable and an additional hand brace is available to support the back of the player's left hand (recommended).


  • Modular components for your preferred setup
  • Most ergonomic grip and hand brace
  • Optional screw bell flare for compact travel
  • Meinlschmidt Open-Flow rotors, dependent in F & D
  • Removable mouthpipe
  • Unsoldered bell rim bead
  • Lightweight acoustic bracing
  • Flawless construction and component action


  • Brass or nickel hand slide with removable leadpipe
  • Yellow or gold 9.5" bell, or gold XL bell
  • Fixed bell flare includes Bags of Spain case
  • Screw bell flare includes Marcus Bonna case
  • Optional hand brace - this is worthy

Bell Weights

  • Yellow Brass L 19.1 oz.
  • Gold Brass XL 20.2 oz.
  • Yellow Brass L with Screw Flare 22.0 oz.
  • Gold Brass L with Screw Flare 21.5 oz.

How to Choose

  • Classical symphonic style: all brass, yellow brass bell, fixed or screw flare, brass slide
  • George Roberts, Holton style: gold & nickel, XL gold brass bell, nickel slide
  • Commercial Conn style:  gold & brass, screw flare gold bell, brass slide
  • Classical Soloist - gold & brass, gold brass bell with screw flare, brass slide
  • Juliane Gralle - stacked brass, brass bell and slide


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