Bach 1B vs Conn Imp. Precision 3
The Bach 1B has a wider cup diameter, the Bach 1B features a deeper cup.
Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.
Mouthpiece A
Bach 1B
• Cornet
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Conn Imp. Precision 3
• Cornet
GeneralMaterialSilver-plated brass
Best suited for
All-round versatile — balanced cup for general playing
Most popular model; all-around
Bright quality of tone in all registers
Material
The Bach 1B 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.