How does cup depth compare between Conn Connstellation 7BN and Yamaha HR-31-GP?

The Conn Connstellation 7BN 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 7BN vs Yamaha HR-31-GP

Name: Yamaha HR-31-GP
Brand: Yamaha

the Conn Connstellation 7BN features a deeper cup.

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

The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.

Mouthpiece A

Conn Connstellation 7BN

• French Horn

Orchestral

Throat diameter—

Best suited for

📋French horn players

🎶French horn size 7; smaller cup; more compact tone; Narrow rim; smaller inner radius; sharper bite.

Mouthpiece B

Yamaha HR-31-GP

• French Horn

Throat diameter4.40 mm / 0.1732 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 7BN vs Yamaha HR-31-GP

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