Conn Precision 1 vs Conn Precision 3A
the Conn Precision 1 features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Precision 1
• Trombone
OrchestralCup diameter—
Best suited for
Large bore trombones; symphony work
Good clear tone; large bore symphonic
vs
Mouthpiece B
Conn Precision 3A
• Trombone
GeneralCup diameter—
Best suited for
General trombone use
Good round tone in all registers; all-around
Which is better?
The Conn Precision 1 is designed for orchestral playing, while the Conn Precision 3A targets general use. Your best choice depends on your musical context.