Which has a bigger cup — Giardinelli 6M or Schilke 51D?

The Schilke 51D has a cup diameter of 25.55 mm / 1.0059 in compared to 24.50 mm / 0.9646 in on the Giardinelli 6M — a difference of 1.05 mm / 0.0413 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Giardinelli 6M and Schilke 51D?

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

Giardinelli 6M vs Schilke 51D

Name: Schilke 51D
Brand: Schilke

The Schilke 51D has a wider cup diameter, the Schilke 51D has a larger throat opening.

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 6M

• Baritone / Euphonium

Backbore.228"

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Schilke 51D

• Baritone / Euphonium

BackboreJ .277"

Best suited for

📣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 6M vs Schilke 51D

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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