Bob Reeves RP8 vs Yamaha TR-14B4

The Yamaha TR-14B4 has a wider cup diameter, the Bob Reeves RP8 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
    Bob Reeves RP8
    • Trumpet
    Backbore
    Best suited for
    🎵All-round versatile — balanced cup for general playing
    vs
    Mouthpiece B
      Yamaha TR-14B4
      • Trumpet
      BackboreSemi-narrow

      Which is better?

      Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.

      Open in interactive tool + Add third mouthpiece Bob Reeves RP8 details Yamaha TR-14B4 details Bob Reeves RP8 equivalents Yamaha TR-14B4 equivalents