Bach 12E vs Giardinelli 5M
The Giardinelli 5M has a wider cup diameter, the Giardinelli 5M features a deeper cup, the Giardinelli 5M has a larger throat opening.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Bach 12E
• Trombone
Rim width—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli 5M
• Trombone
Rim width—
Best suited for
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.