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

The Schilke 42B has a cup diameter of 22.99 mm / 0.9051 in compared to 22.51 mm / 0.8862 in on the Schilke 40B — a difference of 0.48 mm / 0.0189 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 42B?

The Schilke 42B 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 42B

Name: Schilke 42B
Brand: Schilke

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

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

Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.

Mouthpiece A

Schilke 40B

• Trombone

Material—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Schilke 42B

• Trombone

Material—

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.