Which has a bigger cup — Bach 18 or Curry 124D?

The Bach 18 has a cup diameter of 32.10 mm / 1.2638 in compared to 31.50 mm / 1.2400 in on the Curry 124D — a difference of 0.60 mm / 0.0238 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 18 and Curry 124D?

The Curry 124D has a very deep cup while the Bach 18 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 18 vs Curry 124D

Name: Curry 124D
Brand: Curry

The Bach 18 has a wider cup diameter, the Curry 124D features a deeper cup, the Bach 18 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

Bach 18

• Tuba

Material—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Curry 124D

• Tuba

Material—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣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 18 details Curry 124D details Bach 18 equivalents Curry 124D equivalents

Bach 18 vs Curry 124D

Playing Characteristics

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