How does cup depth compare between Bach 12E and Conn Connstellation 9BN?

The Conn Connstellation 9BN has a very deep cup while the Bach 12E has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 12E vs Conn Connstellation 9BN

Name: Conn Connstellation 9BN
Brand: Conn

the Conn Connstellation 9BN features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Bach 12E

• Trombone

Rim width—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Conn Connstellation 9BN

• Trombone

General

Rim width—

Best suited for

📋Trombone players

🎶Trombone size 9; smaller cup; more compact tone; Narrow rim; smaller inner radius; sharper bite. Fac

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.

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Bach 12E vs Conn Connstellation 9BN

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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