Conn Imp. Precision 2 vs Conn Precision 1
The Conn Precision 1 has a wider cup diameter.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Conn Imp. Precision 2
• Cornet
GeneralCup depth
Best suited for
Players wanting volume; narrower rim than Model 1
Plenty of volume; big tone
vs
Mouthpiece B
Conn Precision 1
• Cornet
GeneralCup depth
Best suited for
All-around players; comfortable wide rim
Full round tone; suited to low notes
Cup Depth
Both mouthpieces share a — cup depth, so the sound character from depth alone will be very similar.
Which is better?
Both mouthpieces are categorized as "General" — the physical dimensions above will determine which suits your embouchure and playing style better.