Bach 1½C vs Conn Connstellation 5BN
The Bach 1½C has a wider cup diameter, the Conn Connstellation 5BN features a deeper cup.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Bach 1½C
• Cornet
Rim width—
vs
Mouthpiece B
Conn Connstellation 5BN
• Cornet
OrchestralRim width—
Best suited for
Trumpet players seeking precise matched dimensions
Size 5 (16.76mm); smaller cup; more compact tone; Narrow rim; smaller inner radius; sharper bite. Fa
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.