How does cup depth compare between Conn Connstellation 3BW and Yamaha HR-31-GP?

The Conn Connstellation 3BW has a very deep cup while the Yamaha HR-31-GP has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Conn Connstellation 3BW vs Yamaha HR-31-GP

Name: Yamaha HR-31-GP
Brand: Yamaha

the Conn Connstellation 3BW features a deeper cup.

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

The internal diameter of the cup, measured at the widest point inside the rim.

Mouthpiece A

Conn Connstellation 3BW

• French Horn

Orchestral

Cup diameter—

Best suited for

📋French horn players

🎶French horn size 3; smaller cup; more compact tone; Wide rim; larger rounded inner radius; less bite

Mouthpiece B

Yamaha HR-31-GP

• French Horn

Cup diameter17.28 mm / 0.6803 in

Best suited for

📣High-volume projection — open throat for power

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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Conn Connstellation 3BW vs Yamaha HR-31-GP

Playing Characteristics

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