{"product_id":"mercer-and-barker-gw4-euphonium-mouthpiece-1","title":"Mercer and Barker GW4 Euphonium Mouthpiece","description":"\u003cp\u003e\u003cspan\u003eUsed Mercer \u0026amp; Barker GW4 Euphonium Mouthpiece – Excellent Condition\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUp for sale is a premium, precision-engineered \u003c\/span\u003e\u003cspan\u003eMercer \u0026amp; Barker GW4 Euphonium Mouthpiece\u003c\/span\u003e\u003cspan\u003e (Large Shank). Known for their top-tier British craftsmanship, Mercer \u0026amp; Barker mouthpieces are highly sought after by elite brass players for their ability to significantly enhance core sound, adaptability, and intonation stability across all registers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhy Players Love the GW4\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe GW4 is Mercer \u0026amp; Barker’s classic euphonium design, specifically engineered for exceptional tone production and pitch precision. It offers a beautifully balanced, full-bodied sound that helps fill out the horn effortlessly. It is an incredibly versatile choice, making it equally brilliant for soloistic performances, brass bands, wind ensembles, or orchestral playing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eCup Diameter:\u003c\/span\u003e\u003cspan\u003e 26.00 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eRim Width:\u003c\/span\u003e\u003cspan\u003e 6.70 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eThroat\/Bore:\u003c\/span\u003e\u003cspan\u003e 7.38 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eSize Comparison:\u003c\/span\u003e\u003cspan\u003e Similar in feel and profile to a Denis Wick SM4 \/ 4AL, Alliance DC3, or Bach 4G.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCondition Report\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis particular mouthpiece is in \u003c\/span\u003e\u003cspan\u003ereally good pre-owned condition\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eBody \u0026amp; Components:\u003c\/span\u003e\u003cspan\u003e All components of the mouthpiece are structurally sound and in great shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eRim \u0026amp; Cup:\u003c\/span\u003e\u003cspan\u003e The rim and cup are in really good condition, ensuring maximum lip comfort and an unaltered playing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eShank:\u003c\/span\u003e\u003cspan\u003e Shows normal signs of cosmetic wear and tear, primarily typical insertion marks from being placed in the instrument receiver. This is completely standard for a used mouthpiece and has zero impact on the seal, airflow, or performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePolicy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eAll Sales Are Final.\u003c\/span\u003e\u003cspan\u003e Please review the descriptions and specifications carefully before purchasing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDon't miss the chance to add this premium piece of British engineering to your setup at a great used value!\u003c\/span\u003e\u003c\/p\u003e","brand":"Professor Mouthpiece","offers":[{"title":"Default Title","offer_id":41126225707057,"sku":"GW4PT-7-17-26","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/6843\/2433\/files\/0815E4B5-6B14-46C9-8407-1FF1673BBFC7.jpg?v=1784350274","url":"https:\/\/profmouthpiece.com\/products\/mercer-and-barker-gw4-euphonium-mouthpiece-1","provider":"Professor Mouthpiece","version":"1.0","type":"link"}