Which has a bigger cup — Giardinelli 5D or Giardinelli 6D?

The Giardinelli 5D has a cup diameter of 25.00 mm / 0.9843 in compared to 24.50 mm / 0.9646 in on the Giardinelli 6D — a difference of 0.50 mm / 0.0197 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Giardinelli 5D and Giardinelli 6D?

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

Giardinelli 5D vs Giardinelli 6D

Name: Giardinelli 6D
Brand: Giardinelli

The Giardinelli 5D has a wider cup diameter.

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

The taper behind the throat leading to the shank. Affects projection and tone character.

Mouthpiece A

Giardinelli 5D

• Baritone / Euphonium

Backbore15/64" (.234)

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Mouthpiece B

Giardinelli 6D

• Baritone / Euphonium

Backbore15/64" (.234)

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

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.

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Giardinelli 5D vs Giardinelli 6D

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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Compare Giardinelli 6D with others

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