The YEP-642S has created a new standard in the art of euphonium construction. This trend-setting instrument quickly became the first choice for many leading musicians, expanding musical expression through a wide range of timbres and unusually high levels of tonal viscosity.
A main-tube trigger system offers precise pitch control as well as solid tone. The lever plate can be pressed during a performance to shift the main tube tuning slide downward, lowering pitch by a precisely controlled amount. Release the lever plate and the tuning slide returns to its original position. To tune the instrument prior to a performance, loosen the rod base screw so that the main tube tuning slide can be positioned as required. The screw can then be tightened to set the trigger rod to the desired position.
* A hex wrench (for lever plate vertical position and angle adjustment) and operation manual for the trigger system are supplied.
1. Lever plate vertical position and angle adjustment
The supplied hex wrench can be used to loosen the lever plate screws, allowing the vertical position and angle of the lever plate to be adjusted for maximum operation comfort and ease.
2. Lever plate stroke adjustment
Use a standard “minus” screwdriver to rotate the lever plate stroke screw and adjust as required.
The main tube tuning slides of euphoniums designed for trigger mechanisms have a rod base to which the trigger rod attaches. Additionally, the diameter of the main tube tuning slide inner tube is smaller than normal to ensure smooth trigger operation.
A special metal cover prevents the main tube tuning slide from coming into to direct contact with and possibly transferring oil to the player’s clothing. Loosen the attachment screw to adjust the position of the cover as required.
Key: Bb
Body: Yellow Brass
Bell Diameter: 300mm (11 4/5")
Bore Size: 15-16.8mm (0.591-0.661")
Height: 664mm
Valves: 3 top + 1 side compensating
Finish: Silver plated
Mouthpiece: SL-51L
Case: Included
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