Mercer and Barker MB4F ET Power Euphonium Mouthpiece Silver

Up for sale is a pre-owned Mercer & Barker MB4F ET Power euphonium mouthpiece in Good condition. Combining a modern heavy-top design with a flat rim profile, the MB4F ET Power provides maximum tonal stability, core projection, and a quick, direct response across all registers—ideal for brass band and soloist settings requiring clarity and acoustic weight. Item Specifications Brand: Mercer & Barker Model: MB4F ET Power Instrument: Euphonium (Large Shank) Finish: Silver Plated (Mirror-Polished) Cup Diameter: 26.00 mm Throat Size: 7.28 mm Rim Width: 6.75 mm (Flat Rim Profile) Country of Origin: United Kingdom Condition Notes Overall Condition: Good (Used) Cosmetic Wear: Shows normal signs of use, including insertion marks on the shank and light surface swirling. Structural Integrity: The rim, cup, and shank end remain true, round, and intact. No deep dings, dents, or raw brass exposure. Thoroughly cleaned and sanitized prior to listing. Why Buy the MB4F ET Power? Heavy-Top Mass: Provides increased sound density and slotting stability, helping your sound hold together in loud passages without breaking up. Flat Rim Profile: Offers secure, precise embouchure contact for superior control and crisp articulation. Professional Engineering: High-precision UK manufacturing designed specifically for serious euphonium performers. Shipping & Handling Ships quickly and securely via USPS/UPS in protective bubble wrap. Orders processed within 1 business day.