Conn Connstellation 5CN vs Conn Precision 3A
Both mouthpieces share similar core dimensions — the differences are in the details.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Conn Connstellation 5CN
• Trombone
GeneralCup depth
Best suited for
Trombone players
Trombone size 5; larger cup; fuller lower register; Narrow rim; smaller inner radius; sharper bite.
vs
Mouthpiece B
Conn Precision 3A
• Trombone
GeneralCup depth
Best suited for
General trombone use
Good round tone in all registers; all-around
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.