Which has a bigger cup — Bach 17D or Curry 12S?

The Curry 12S has a cup diameter of 24.23 mm / 0.9540 in compared to 24.20 mm / 0.9528 in on the Bach 17D — a difference of 0.03 mm / 0.0012 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 17D and Curry 12S?

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

Bach 17D vs Curry 12S

Name: Curry 12S
Brand: Curry

The Curry 12S has a wider cup diameter, the Curry 12S has a larger throat opening.

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

The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Bach 17D

• Trombone

Rim width—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Curry 12S

• Trombone

Rim width—

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 Curry 12S details Bach 17D equivalents Curry 12S equivalents

Bach 17D vs Curry 12S

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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