Bach 12E vs Conn Connstellation 7CN
the Conn Connstellation 7CN features a deeper cup.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bach 12E
• Trombone
Backbore—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Conn Connstellation 7CN
• Trombone
GeneralBackbore—
Best suited for
Trombone players
Trombone size 7; larger cup; fuller lower register; Narrow rim; smaller inner radius; sharper bite.
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.