Conn Imp. Precision 1 vs Conn Precision 1
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Conn Imp. Precision 1
• Cornet
GeneralCup diameter16.56 mm / 0.6520 in
Cup depth
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
All-around; comfortable popular model
Full round tone especially on low notes
vs
Mouthpiece B
Conn Precision 1
• Cornet
GeneralCup diameter16.56 mm / 0.6520 in
Cup depth
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
All-around players; comfortable wide rim
Full round tone; suited to low notes
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 16.56 mm / 0.6520 in.
Cup Depth
Both mouthpieces share a — cup depth, so the sound character from depth alone will be very similar.
Material
Both mouthpieces share the same listed material (Silver-plated brass).
Which is better?
Both mouthpieces are categorized as "General" — the physical dimensions above will determine which suits your embouchure and playing style better.