Bach 12E vs Conn Connstellation 9BN
the Conn Connstellation 9BN features a deeper cup.
Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.
Mouthpiece A
Bach 12E
• Trombone
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Conn Connstellation 9BN
• Trombone
GeneralMaterialSilver-plated brass
Best suited for
Trombone players
Trombone size 9; smaller cup; more compact tone; Narrow rim; smaller inner radius; sharper bite. Fac
Material
The Bach 12E is described as unspecified, and the Conn Connstellation 9BN as Silver-plated brass. Material affects mass, warmth, and how quickly the piece responds.
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.