Giardinelli 1FL vs GR Technologies 64FL
The Giardinelli 1FL has a wider cup diameter, the Giardinelli 1FL features a deeper cup.
Mouthpiece A
Giardinelli 1FL
• Flugelhorn
Cup diameter17.50 mm
Cup depthVery deep
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
GR Technologies 64FL
• Flugelhorn
Cup diameter16.26 mm
Cup depthMedium
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
Cup Diameter
The Giardinelli 1FL has a cup diameter of 17.50 mm compared to 16.26 mm on the GR Technologies 64FL — a difference of +1.24 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Giardinelli 1FL has a very deep cup while the GR Technologies 64FL 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.