Bach 1 vs GR Technologies E65M
The Bach 1 has a wider cup diameter, the Bach 1 features a deeper cup.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bach 1
• Trumpet
Backbore—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
GR Technologies E65M
• Trumpet
Backbore—
Best suited for
All-round versatile — balanced cup for general playing
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.