OverviewBob Reeves Trumpet Mouthpiece Underparts contain the cup, bore, and shank. Each is designed to create a different sound, and is optimized for a different playing style. The standard #2 backbore works well with any cup.

SpecsTrumpet Mouthpiece Underpart Only Specifications:

• Standard #2 Backbore – The second backbore made by Bob Reeves, it is similar to a Bach #10. It plays with excellent tone color and intonation
• B cup – Deep cylindrical bowl similar to a Bach 7B
• C cup – Medium-deep bowl similar to a Bach 3C
• D cup – Medium-deep conical bowl
• ES cup – Extra shallow bowl
• M cup – Medium bowl
• S cup – Shallow bowl
• SV cup – Very shallow conical “V” shape
• V cup – Very deep conical bowl