Which has a bigger cup — GR Technologies 66.5FL Almeida or Schilke 20F?

The Schilke 20F has a cup diameter of 17.78 mm / 0.7000 in compared to 16.89 mm / 0.6650 in on the GR Technologies 66.5FL Almeida — a difference of 0.89 mm / 0.0350 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between GR Technologies 66.5FL Almeida and Schilke 20F?

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

GR Technologies 66.5FL Almeida vs Schilke 20F

Name: Schilke 20F
Brand: Schilke

The Schilke 20F has a wider cup diameter.

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

GR Technologies 66.5FL Almeida

• Flugelhorn

Rim width—

Mouthpiece B

Schilke 20F

• Flugelhorn

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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GR Technologies 66.5FL Almeida vs Schilke 20F

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

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