Which has a bigger cup — Bach 17D or Bruno Tilz 304- B 2?

The Bach 17D has a cup diameter of 24.20 mm / 0.9528 in compared to 23.00 mm / 0.9055 in on the Bruno Tilz 304- B 2 — a difference of 1.20 mm / 0.0472 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 17D and Bruno Tilz 304- B 2?

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

Bach 17D vs Bruno Tilz 304- B 2

Name: Bruno Tilz 304- B 2
Brand: Bruno Tilz

The Bach 17D has a wider cup diameter, the Bach 17D 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

Bach 17D

• Baritone / Euphonium

Backbore—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Bruno Tilz 304- B 2

• Baritone / Euphonium

Catalog

Backbore—

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.

Open in interactive tool + Add third mouthpiece Bach 17D details Bruno Tilz 304- B 2 details Bach 17D equivalents Bruno Tilz 304- B 2 equivalents

Bach 17D vs Bruno Tilz 304- B 2

Playing Characteristics

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What Changes If You Switch?

Which is better?

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