Bach 6 vs Giardinelli 3D
The Giardinelli 3D has a wider cup diameter, the Giardinelli 3D features a deeper cup, the Giardinelli 3D has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bach 6
• Baritone / Euphonium
Cup diameter25.50 mm
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli 3D
• Baritone / Euphonium
Cup diameter26.30 mm
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
The Giardinelli 3D has a cup diameter of 26.30 mm compared to 25.50 mm on the Bach 6 — a difference of +0.80 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
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.