Which has a bigger cup — Schilke 40B or Schilke 42?

The Schilke 42 has a cup diameter of 23.22 mm / 0.9142 in compared to 22.51 mm / 0.8862 in on the Schilke 40B — a difference of 0.71 mm / 0.0280 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Schilke 40B and Schilke 42?

The Schilke 42 has a medium cup while the Schilke 40B has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Schilke 40B vs Schilke 42

Name: Schilke 42
Brand: Schilke

The Schilke 42 has a wider cup diameter, the Schilke 42 features a deeper cup.

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

Schilke 40B

• Trombone

Backbore15/64 .2344"

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Schilke 42

• Trombone

Backbore15/64 .2344"

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.