Which has a bigger cup — Bach 5C or Marcinkiewicz CH 6 / 10.5C?

The Marcinkiewicz CH 6 / 10.5C has a cup diameter of 16.84 mm / 0.6630 in compared to 16.25 mm / 0.6398 in on the Bach 5C — a difference of 0.59 mm / 0.0232 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 5C and Marcinkiewicz CH 6 / 10.5C?

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

Bach 5C vs Marcinkiewicz CH 6 / 10.5C

Name: Marcinkiewicz CH 6 / 10.5C
Brand: Marcinkiewicz

The Marcinkiewicz CH 6 / 10.5C has a wider cup diameter.

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 5C

• Trumpet

Backbore—

Best suited for

🎵All-round versatile — balanced cup for general playing

Mouthpiece B

Marcinkiewicz CH 6 / 10.5C

• Trumpet

Backbore—

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.