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Hiram 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 legendary President's Own United States Marine Band since 2012 — this signature mouthpiece is engineered for the moments that matter most: high, extended solos that demand to be heard, felt, and remembered. While Hiram's daily setup handles the full spectrum of Marine Band duties (concerts, ceremonies, marches, and more), this mouthpiece is his specialized solo dominator — the one he reaches for when the spotlight shines, the melody soars into the stratosphere, and every note needs to project with crystal-clear resonance, pure tone, and uncompromising clarity. The refined geometry delivers effortless upper-register access, a singing lyrical quality, and a focused core that blooms beautifully in any hall — whether performing virtuosic concertos, lyrical features, or standout passages in the nation's premier military ensemble.
Why this mouthpiece elevates your playing:
Hiram Diaz doesn't just play euphonium — he inspires. This mouthpiece captures that same artistry: built for players who want to step into the light, deliver extended, soaring lines with confidence, and leave every listener moved by a sound that's pure, powerful, and unforgettable. If you're chasing solo brilliance — whether in recitals, concerts, competitions — the Hiram Diaz Signature is your go-to.
We carefully pack every mouthpiece to ensure it arrives in perfect condition. Orders are processed within 1–2 business days and shipped with tracking provided once dispatched.
If you're not completely satisfied, returns are accepted within 14 days of delivery. Items must be unused and in original condition.
For any shipping or return inquiries, please contact our support team — we’re happy to help. CONTACT US
Driven by a deep passion to enhance response, articulation, and overall playing ease, Ivan Giddings channeled his extensive understanding of brass performance into innovating mouthpiece design. Starting with just an idea to create better mouthpieces, his relentless drive led to the development of truly unique designs that prioritize superior playability and sound.
Designed and manufactured in Mississippi, USA, our mouthpieces represent the highest standards of quality and craftsmanship. Built with precision and care, they deliver consistent performance trusted by professionals and passionate musicians worldwide.
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