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.

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

How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).

Mouthpiece A

GR Technologies 66.5FL Almeida

• Flugelhorn

Cup depthMedium

Mouthpiece B

Schilke 20F

• Flugelhorn

Cup depthMedium

Best suited for

📣High-volume projection — open throat for power

Cup Depth

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

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.

Open in interactive tool + Add third mouthpiece GR Technologies 66.5FL Almeida details Schilke 20F details GR Technologies 66.5FL Almeida equivalents Schilke 20F equivalents

GR Technologies 66.5FL Almeida vs Schilke 20F

Cup Depth

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare GR Technologies 66.5FL Almeida with others

Compare Schilke 20F with others

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