Which has a bigger cup — Giardinelli 18 or Schilke GEIB?

The Schilke GEIB has a cup diameter of 32.76 mm / 1.2898 in compared to 31.00 mm / 1.2205 in on the Giardinelli 18 — a difference of 1.76 mm / 0.0693 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Giardinelli 18 and Schilke GEIB?

The Giardinelli 18 has a deep cup while the Schilke GEIB has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Giardinelli 18 vs Schilke GEIB

Name: Schilke GEIB
Brand: Schilke

The Schilke GEIB has a wider cup diameter, the Giardinelli 18 features a deeper cup.

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

The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Giardinelli 18

• Tuba

Rim width—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Mouthpiece B

Schilke GEIB

• Tuba

Rim width—

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 18 vs Schilke GEIB

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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