Yamaha's Sterling Silver 925 Series Mouthpieces are the first in the world to be manufactured from pure sterling silver and deliver a dark, strong sound with outstanding projection. The tone core is rich and warm yet has sufficient sparkle for clarity and life. Horn Mouthpiece Specifications Model Rim Cup Depth Throat Backbore Playing Charateristics Inner Diameter Contour Thickness YAC HR30-ST 17.08 mm standard standard standard (double-cup) 4.4 mm semi-narrow Relatively small inner rim diameter, but still flexible. Perfect for piccolo or lead trumpet. YAC HR31-ST 17.28 mm standard standard standard (double-cup) 4.4 mm semi-narrow A somewhat shallow cup and medium rim for extra endurance. Brilliant tone. Suitable for D, Eb, and piccolo trumpets. YAC HR32-ST 17.48 mm standard standard standard (double-cup) 4.4 mm semi-narrow Fast-response high range and powerful sound. Ideal for piccolo or lead trumpet.

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