Conn Imp. Precision 5 vs Denis Wick 1AL
Both mouthpieces share similar core dimensions — the differences are in the details.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Conn Imp. Precision 5
• Trombone
GeneralRim width—
Best suited for
Connstellation-equipped tenor trombone
Designed for Connstellation 24I/25I
vs
Mouthpiece B
Denis Wick 1AL
• Trombone
Rim width6.09 mm / 0.2398 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
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.