The Yamaha YHR 667D has a warm clear sound with outstanding tone color flexibility, giving players free rein to express their own musical personalities. The clean sound has a rich, focused core for excellent projection in any venue. Accurate intonation and comfortable quick response have made this one of the world's most popular French horns.
Hand-Lapped Rotary Valves And Slides
Rotary valves and slides that have been hand-lapped are airtight and have smooth action.
Articulated Key Levers
Articulated key levers have responsive motion.
Hammered And Annealed Bell
Hammering and annealing are processes so important to the instrument's acoustic characteristics that Yamaha employs computer-controlled equipment to ensure consistently superior sound. Hammering enables bells to have a rich, resonant tone that blends beautifully with other instruments. Annealing is a cooling and heating process that makes it easier to control the acoustics of the instrument.
A cyclical bore is a perfectly cylindrical tubing assembly in combination with a conical leadpipe and bell system. This allows for consistent air flow throughout the horn.
Tapered valves wear for a long time without air leakage.