Hiram Diaz Signature Euphonium Mouthpiece Shank:Large this signature bass trombone mouthpiece

this signature bass trombone mouthpiece is the go-to for players who demand total versatility across the full range of the instrument

Created in close collaboration with Gianluca Scipioni

go-to choice for players who want classic 6½ AL warmth with modern upgrades in comfort

and built to last — just like the legend himself

Why players keep coming back to the GWC-100:

Hiram Diaz Signature Euphonium Mouthpiece Shank:Large this signature bass trombone mouthpieceHiram Diaz Signature Euphonium Mouthpiece The Solo Spotlight Designed for Gunnery Sgt. Hiram Diaz, Assistant Principal Euphonium, "The President's Own" United States Marine Band Premium Stainless Steel Construction Cup Diameter: approx. 0. 9896" Throat: 0. 278" Cup Depth: 1. 303" Crafted in close collaboration with Hiram Diaz one of the most celebrated euphoniumists in the world, a second generation Cuban American powerhouse, and a key voice in the