Which has a bigger cup — Schilke 44E4 or Schilke 45?

The Schilke 45 has a cup diameter of 24.38 mm / 0.9598 in compared to 24.28 mm / 0.9559 in on the Schilke 44E4 — a difference of 0.10 mm / 0.0039 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Schilke 44E4 and Schilke 45?

The Schilke 44E4 has a very deep cup while the Schilke 45 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Schilke 44E4 vs Schilke 45

Name: Schilke 45
Brand: Schilke

The Schilke 45 has a wider cup diameter, the Schilke 44E4 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 44E4

• Trombone

Backbore15/64 .2344"

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Mouthpiece B

Schilke 45

• 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.

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Schilke 44E4 vs Schilke 45

Playing Characteristics

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What Changes If You Switch?

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