Korpa 
The YTR-4335GII features a gold-brass bell that produces a richer, wider range of tonal colors. Durable yet light, the bell promotes easy endurance while playing. The richness of tone quality and free blowing feel make this trumpet a great vehicle for those players looking to take their performance to the next level.
Gold brass bell
The newly redesigned, durable yet light two-piece bell is made of gold brass for a wide range of tone colors and to promote good technique and endurance.
New pistons, valve caps and buttons
The picture shows YTR-2330S
Highly durable monel alloy pistons as well as newly designed valve buttons and bottom caps help lengthen the life of the instrument while also maximizing sound quality.
New tuning slides
The picture shows YTR-2330.
The 2nd and main tuning slides are produced using the same method as high-end Yamaha models, which provides stability, a more refined tonal color and added durability.