Which has a bigger cup — Bruno Tilz 302-29 or Yamaha HR-33C4?

The Yamaha HR-33C4 has a cup diameter of 17.68 mm / 0.6961 in compared to 17.50 mm / 0.6890 in on the Bruno Tilz 302-29 — a difference of 0.18 mm / 0.0071 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bruno Tilz 302-29 and Yamaha HR-33C4?

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

Bruno Tilz 302-29 vs Yamaha HR-33C4

Name: Yamaha HR-33C4
Brand: Yamaha

The Yamaha HR-33C4 has a wider cup diameter, the Bruno Tilz 302-29 has a larger throat opening.

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

Bruno Tilz 302-29

• French Horn

Catalog

Material—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Yamaha HR-33C4

• French Horn

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.

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Bruno Tilz 302-29 vs Yamaha HR-33C4

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