Which has a bigger cup — Giardinelli 17FL or Giardinelli 6FL?

The Giardinelli 6FL has a cup diameter of 16.70 mm / 0.6575 in compared to 15.00 mm / 0.5906 in on the Giardinelli 17FL — a difference of 1.70 mm / 0.0669 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Giardinelli 17FL and Giardinelli 6FL?

Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.

Giardinelli 17FL vs Giardinelli 6FL

Name: Giardinelli 6FL
Brand: Giardinelli

The Giardinelli 6FL has a wider cup diameter.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

Surface plating or treatment (e.g. silver plate, gold trim). Affects feel, durability, and appearance.

Mouthpiece A

Giardinelli 17FL

• Flugelhorn

Finish—

Mouthpiece B

Giardinelli 6FL

• Flugelhorn

Finish—

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.