Kelly 7C-BUGLE vs Yamaha TR-14B4
The Yamaha TR-14B4 has a wider cup diameter, the Kelly 7C-BUGLE features a deeper cup, the Kelly 7C-BUGLE has a larger throat opening.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Kelly 7C-BUGLE
• Trumpet
GeneralCup depthMedium
Best suited for
All-round versatile — balanced cup for general playing
Standard bugle use
vs
Mouthpiece B
Yamaha TR-14B4
• Trumpet
Cup depthShallow
Cup Depth
The Kelly 7C-BUGLE has a medium 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.