Giardinelli 1GM vs Kelly SYMPHONY-LS-SS
The Giardinelli 1GM has a wider cup diameter, the Kelly SYMPHONY-LS-SS features a deeper cup.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Giardinelli 1GM
• Trombone
Rim width—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Kelly SYMPHONY-LS-SS
• Trombone
OrchestralRim width—
Best suited for
Orchestral playing — large cup for full, dark tone
Symphonic trombone
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.