Bob 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.
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