Conn Connstellation 3BW vs Yamaha HR-31B
the Conn Connstellation 3BW features a deeper cup.
Mouthpiece A
Conn Connstellation 3BW
• French Horn
OrchestralCup diameter—
Cup depthVery deep
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
French horn players
French horn size 3; smaller cup; more compact tone; Wide rim; larger rounded inner radius; less bite
vs
Mouthpiece B
Yamaha HR-31B
• French Horn
Cup diameter17.47 mm / 0.6878 in
Cup depthShallow
Rim width—
Throat diameter3.90 mm / 0.1535 in
BackboreSemi-wide
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Depth
The Conn Connstellation 3BW has a very deep cup while the Yamaha HR-31B has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Material
The Conn Connstellation 3BW is described as Silver-plated brass, and the Yamaha HR-31B as unspecified. Material affects mass, warmth, and how quickly the piece responds.
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.