Which has a bigger cup — Bach 1B or Conn Connstellation 5CW?

The Bach 1B has a cup diameter of 17.00 mm / 0.6693 in compared to 16.76 mm / 0.6598 in on the Conn Connstellation 5CW — a difference of 0.24 mm / 0.0094 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1B and Conn Connstellation 5CW?

The Conn Connstellation 5CW has a — cup while the Bach 1B has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 1B vs Conn Connstellation 5CW

Name: Conn Connstellation 5CW
Brand: Conn

The Bach 1B has a wider cup diameter, the Conn Connstellation 5CW features a deeper cup.

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

The taper behind the throat leading to the shank. Affects projection and tone character.

Mouthpiece A

Bach 1B

• Cornet

Backbore—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

Mouthpiece B

Conn Connstellation 5CW

• Cornet

Orchestral

Backbore—

Best suited for

📋Trumpet players seeking precise matched dimensions

🎶Size 5 (16.76mm); larger cup; fuller lower register; Wide rim; larger rounded inner radius; less bit

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.

Open in interactive tool + Add third mouthpiece Bach 1B details Conn Connstellation 5CW details Bach 1B equivalents Conn Connstellation 5CW equivalents

Bach 1B vs Conn Connstellation 5CW

Playing Characteristics

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