Bob Reeves Piccolo 42/B/X vs Yamaha TR-14B4
The Yamaha TR-14B4 has a wider cup diameter, the Bob Reeves Piccolo 42/B/X features a deeper cup.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Bob Reeves Piccolo 42/B/X
• Trumpet
Cup depthVery deep
vs
Mouthpiece B
Yamaha TR-14B4
• Trumpet
Cup depthShallow
Cup Depth
The Bob Reeves Piccolo 42/B/X has a very deep cup while the Yamaha TR-14B4 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.