Bach 6C Flugel vs Giardinelli 17FL
The Bach 6C Flugel has a wider cup diameter, the Giardinelli 17FL features a deeper cup.
Mouthpiece A
Bach 6C Flugel
• Flugelhorn
Cup diameter16.20 mm
Cup depthMedium
Rim width—
Throat diameter3.99 mm
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli 17FL
• Flugelhorn
Cup diameter15.00 mm
Cup depthVery deep
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Cup Diameter
The Bach 6C Flugel has a cup diameter of 16.20 mm compared to 15.00 mm on the Giardinelli 17FL — a difference of +1.20 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Giardinelli 17FL has a very deep cup while the Bach 6C Flugel has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.