Bach 3C vs GR Technologies E65MX
The GR Technologies E65MX has a wider cup diameter, the GR Technologies E65MX features a deeper cup.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Bach 3C
• Trumpet
Cup depthMedium
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
GR Technologies E65MX
• Trumpet
Cup depthDeep
Cup Depth
The GR Technologies E65MX has a deep cup while the Bach 3C has a medium 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.