Which has a bigger cup — Bruno Tilz 213- S 2 or Kelly 5G-EU?

The Kelly 5G-EU has a cup diameter of 25.40 mm / 1.0000 in compared to 23.00 mm / 0.9055 in on the Bruno Tilz 213- S 2 — a difference of 2.40 mm / 0.0945 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bruno Tilz 213- S 2 and Kelly 5G-EU?

The Kelly 5G-EU has a — cup while the Bruno Tilz 213- S 2 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bruno Tilz 213- S 2 vs Kelly 5G-EU

Name: Kelly 5G-EU
Brand: Kelly

The Kelly 5G-EU has a wider cup diameter, the Kelly 5G-EU features a deeper cup.

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

The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.

Mouthpiece A

Bruno Tilz 213- S 2

• Baritone / Euphonium

Catalog

Throat diameter4.60 mm / 0.1811 in

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Kelly 5G-EU

• Baritone / Euphonium

General

Throat diameter—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📋Euphonium general use

Which is better?

The Bruno Tilz 213- S 2 is designed for catalog playing, while the Kelly 5G-EU targets general use. Your best choice depends on your musical context.

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Bruno Tilz 213- S 2 vs Kelly 5G-EU

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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