Which has a bigger cup — Bach 17C 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 17C — 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 17C and Curry 12S?

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

Bach 17C 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

Surface plating or treatment (e.g. silver plate, gold trim). Affects feel, durability, and appearance.

Mouthpiece A

Bach 17C

• Trombone

Finish—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Curry 12S

• Trombone

Finish—

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.