Bach 3C vs GR Technologies 63S
The Bach 3C has a wider cup diameter, the Bach 3C features a deeper cup.
Surface plating or treatment (e.g. silver plate, gold trim). Affects feel, durability, and appearance.
Mouthpiece A
Bach 3C
• Trumpet
Finish—
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
GR Technologies 63S
• Trumpet
Finish—
Best suited for
Lead / commercial — shallow cup for brightness and range
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.