Conn Imp. Precision 2 vs Yamaha BB-BOBO-SOLO-GP
the Conn Imp. Precision 2 features a deeper cup.
Mouthpiece A
Conn Imp. Precision 2
• Tuba
GeneralCup diameter—
Cup depth
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
BBb bass / sousaphone general
Full rich tone in all registers
vs
Mouthpiece B
Yamaha BB-BOBO-SOLO-GP
• Tuba
Cup diameter32.20 mm / 1.2677 in
Cup depthShallow
Rim width—
Throat diameter7.50 mm / 0.2953 in
BackboreStandard
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Depth
The Conn Imp. Precision 2 has a — cup while the Yamaha BB-BOBO-SOLO-GP has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Material
The Conn Imp. Precision 2 is described as Silver-plated brass, and the Yamaha BB-BOBO-SOLO-GP 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.