Conn Imp. Precision 4 vs Giardinelli Sym. T
the Conn Imp. Precision 4 features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Imp. Precision 4
• Trombone
OrchestralCup diameter—
Best suited for
Bass trombone / large bore tenor
Full rich deep tone
vs
Mouthpiece B
Giardinelli Sym. T
• Trombone
Cup diameter25.80 mm / 1.0157 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.