Bach 5C vs GR Technologies 65VC
The GR Technologies 65VC has a wider cup diameter, the GR Technologies 65VC features a deeper cup.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bach 5C
• Trumpet
Backbore—
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
GR Technologies 65VC
• Trumpet
Backbore—
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.