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depth between 5
Formerly the MF-11
642in Outside Rim Diameter: 1
016” Cup Depth: Deep/‘4G’ style
Modular Trumpet Mouthpiece Backbore Tuba depth between 5Commercial Backbore Descriptions #1 A tight backbore that provides a brilliant sound. #2 A backbore that provides resistance yet provides a lively sound. #2*O A more open version of the #2. #3 Commercial but can be used for a variety of playing situations. Very even from top to bottom. #4* A tighter version of the #4. #4 Open enough to give a full, broad sound. #4*O A more open version of the #4. #5* A tighter version of the #5. #5 Has power with less