{"product_id":"bach-7-trumpet-backbore-warburton-screw-system-3-8-40tpi","title":"Bach | #7 Trumpet Backbore | Warburton Screw System 3\/8\" 40TPI\"","description":"\u003ch3 data-section-id=\"1cejjlh\" data-start=\"0\" data-end=\"55\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"4\" data-end=\"55\"\u003eBach #7 Warburton Screw System Trumpet Backbore\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"57\" data-end=\"631\"\u003eThe Bach–Warburton #7 Backbore offers a medium resistance and a balanced feel, making it highly versatile for a wide range of playing styles. It is designed to complement medium and medium-deep cup tops, producing a centered, clear tone with moderate projection. Players will notice a comfortable airflow that supports both lyrical orchestral playing and bright, focused lead passages. The taper and throat size of the #7 Backbore provide smooth response across registers while maintaining control and flexibility, allowing for consistent articulation and tonal stability.\u003c\/p\u003e\n\u003cp data-start=\"633\" data-end=\"1029\"\u003e\u003cstrong data-start=\"633\" data-end=\"685\"\u003eWarburton Screw System 3\/8\" 40 TPI Compatibility\u003c\/strong\u003e\u003cbr data-start=\"685\" data-end=\"688\"\u003eWe will modify any mouthpiece in our inventory to allow you to mix and match trumpet mouthpiece tops and backbores from your favorite brands. You can pair a Bach backbore with \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003ePickett Brass\u003c\/span\u003e\u003c\/span\u003e, \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eYamaha\u003c\/span\u003e\u003c\/span\u003e, \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSchilke\u003c\/span\u003e\u003c\/span\u003e, or \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eWarburton\u003c\/span\u003e\u003c\/span\u003e tops.\u003c\/p\u003e\n\u003cp data-start=\"1031\" data-end=\"1121\"\u003e\u003cstrong data-start=\"1031\" data-end=\"1050\"\u003eImportant Note:\u003c\/strong\u003e Your mouthpiece top and backbore should have a matching throat size.\u003c\/p\u003e","brand":"Bach","offers":[{"title":"Default Title","offer_id":51589825298564,"sku":"BACHBOT7","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/0109\/5812\/files\/bach-standard-trumpet-backbore-silver_1fc22962-b9bd-4767-a698-05018e7d9277.jpg?v=1772657124","url":"https:\/\/mouthpieceexpress.com\/products\/bach-7-trumpet-backbore-warburton-screw-system-3-8-40tpi","provider":"Mouthpiece Express.com","version":"1.0","type":"link"}