Features
- 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.
- Hollow valve rotors
Hollow valve rotors provide quick, free response.
- Phosphor bronze rotors
Rotors made of phosphor bronze resist corrosion.
- Cyclical bore
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
Tapered valves wear for a long time without air leakage.
- Long leadpipe
The long leadpipe delivers remarkably accurate and balanced intonation.
- Long rotor valve
The innovative thumb valve configuration on the YHR-891 replaces linked valves, thereby reducing friction, promoting faster response, producing exquisite sound, and improving hand comfort.
- Excellent intonation
The intonation problems normally associated with the triple horn have been eliminated.
- Ingenious valve tubing configuration
The combination of the long rotor valve, dual plane valve, and tubing configuration create a unique shape and size for the triple horn.
- Available features
The YHR-891 horn is available with a 6th rotary A/plus stop valve (YHR-892D). Both models are also available with a detachable screw bell. All models are available by special order only.
Specifications
|
Level |
Custom Triple |
|
Key |
F / Bb / F alto |
|
Style |
Triple |
|
Bore |
0.472" |
|
Bell Diameter |
12 1/8" |
|
Bell Throat |
Medium large / Medium small |
|
Leadpipe Material |
Gold brass |
|
Body/Bell Material |
Yellow brass |
|
Bell Type |
Detachable |
|
Finish |
Lacquered |
|
Mouthpiece |
32C4 |
|
Rotors |
5 Hollow phosphor bronze |
|
Rotor Casing |
Nickel silver |
|
Lever Action |
Mechanical |
|
Water Key |
Yes |
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