Quality brass mouthpieces contribute to the high regard Yamaha has earned among beginning and professional musicians alike. The result of a special approach to design and manufacture, Yamaha mouthpieces deliver the performance and comfort required where they are needed most: where instrument meets musician.

The mouthpiece production technique used by Yamaha promises consistent quality mouthpieces, time after time. Other manufacturers use a specific cutting tool to create every mouthpiece, which causes problems as tools start to wear. This can result in inconsistent quality and poor performance. Yamaha's computer-aided design system and computer controlled lathe work together to produce the most precise, consistent mouthpieces in the world.

Featuring an innovative shape and extra-heavy gold-plate finish, the Gold-Plated series is for advanced players who prefer a focused, concentrated tonal core. Yamaha has chosen different weights and shapes for each model to ensure an ideal sound on each instrument.

Bass Trombone
Model	Rim			Cup Depth	Throat	Backbore	Playing Characteristics
	Inner Diameter	Contour	Thickness
YAC BL59-GPR	27.3 mm	standard	standard	standard	7.25 mm	semi-wide	Relatively thin rim. Rich sound even on pedal tones. Voluminous cup for solid lows and plenty of power.