5 GW Helios Trumpet Mouthpiece Rim Diameter 16.40mm, .646 inches

Classic Revived – 5 Rim Diameter 16.40mm / .646" inner rim – Mt. Vernon 5C Inspired. A timeless favorite returns in premium stainless steel — faithfully based on the legendary Mt. Vernon-era Bach 5C rim, beloved for its perfect balance of security, comfort, and precision. This slightly smaller rim diameter delivers more focused support for your embouchure, providing that extra "grip" and stability many players crave for demanding playing without fatigue. Especially popular in our Shallow cup configuration, this mouthpiece excels in the upper register — unlocking effortless highs, laser-like slotting, and brilliant projection that sings with clarity and edge. The smaller rim combined with the shallow cup geometry creates a bright, lively tone full of sparkle and focus, while the stainless steel construction transfers your buzz with maximum efficiency: more immediate response, enhanced power, and incredible endurance for long sets or high-note fireworks. Key benefits for your sound and playing:

• Superior upper register access — highs feel open, centered, and secure with reduced effort
• Enhanced embouchure support — the rim's contour offers stability and comfort, ideal for players who want more "bite" without sharpness
• Brilliant, projecting tone — lively and rich with exceptional clarity and cut, perfect for lead work, commercial gigs, bright orchestral passages, or any style demanding presence
• Premium one-piece stainless steel — unmatched durability, energy transfer, and consistency that elevates every note

Whether you're chasing screaming highs in a big band, nailing pinpoint attacks in studio sessions, or adding brilliance to your solo repertoire, this mouthpiece gives you the tools for confident, expressive playing. The classic is back — and better than ever.