Which has a bigger cup — Bob Reeves 43.5/FE or Schilke 20F?

The Schilke 20F has a cup diameter of 17.78 mm / 0.7000 in compared to 17.26 mm / 0.6795 in on the Bob Reeves 43.5/FE — a difference of 0.52 mm / 0.0205 in. A wider cup generally produces a fuller, darker tone but requires more air support.

Bob Reeves 43.5/FE 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

Bob Reeves 43.5/FE

• 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 Bob Reeves 43.5/FE details Schilke 20F details Bob Reeves 43.5/FE equivalents Schilke 20F equivalents

Bob Reeves 43.5/FE vs Schilke 20F

Cup Depth

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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Compare Schilke 20F with others

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