Which has a bigger cup — Denis Wick 4FL or Giardinelli 6FL?

The Giardinelli 6FL has a cup diameter of 16.70 mm / 0.6575 in compared to 16.50 mm / 0.6496 in on the Denis Wick 4FL — a difference of 0.20 mm / 0.0079 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Denis Wick 4FL and Giardinelli 6FL?

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

Denis Wick 4FL 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

Denis Wick 4FL

• Flugelhorn

Finish—

Best suited for

📣High-volume projection — open throat for power

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.