Bach 12E vs Conn Connstellation 5CN
the Conn Connstellation 5CN features a deeper cup.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Bach 12E
• Trombone
Throat diameter5.85 mm / 0.2303 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Conn Connstellation 5CN
• Trombone
GeneralThroat diameter—
Best suited for
Trombone players
Trombone size 5; 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.