Which has a bigger cup — Bruno Tilz 306-5 GS or Schilke 46D?

The Bruno Tilz 306-5 GS has a cup diameter of 26.00 mm / 1.0236 in compared to 24.76 mm / 0.9748 in on the Schilke 46D — a difference of 1.24 mm / 0.0488 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bruno Tilz 306-5 GS and Schilke 46D?

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

Bruno Tilz 306-5 GS vs Schilke 46D

Name: Schilke 46D
Brand: Schilke

The Bruno Tilz 306-5 GS has a wider cup diameter, the Bruno Tilz 306-5 GS has a larger throat opening.

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

Bruno Tilz 306-5 GS

• Trombone

Catalog

Backbore—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Schilke 46D

• 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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Bruno Tilz 306-5 GS vs Schilke 46D

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

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