Bach 18 vs Conn Imp. Precision 3
the Conn Imp. Precision 3 features a deeper cup.
Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.
Mouthpiece A
Bach 18
• Tuba
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Conn Imp. Precision 3
• Tuba
GeneralMaterialSilver-plated brass
Best suited for
Large Eb bass
Full round tone
Material
The Bach 18 is described as unspecified, and the Conn Imp. Precision 3 as Silver-plated brass. 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.