Hans Hoyer K10 French Horn

Hans Hoyer F/Bb-Double Horn [Markus Wittgens]
• 4 rotary valves
• 11,9mm / 0.468" bore
• 3B™ linkage system
• 310mm / 12.204" bell
• detachable (ML) bell
• full flow switch valve
• individually adjustable mouthpiece receiver
• three-dimensional adjustable fingerhook, thumblever and flipper
• yellow brass
• clear lacquered