Which has a bigger cup — Bach 5C or Schilke 13D4?

The Schilke 13D4 has a cup diameter of 16.89 mm / 0.6650 in compared to 16.25 mm / 0.6398 in on the Bach 5C — a difference of 0.64 mm / 0.0252 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 5C and Schilke 13D4?

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

Bach 5C vs Schilke 13D4

Name: Schilke 13D4
Brand: Schilke

The Schilke 13D4 has a wider cup diameter.

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 5C

• Trumpet

Material—

Best suited for

🎵All-round versatile — balanced cup for general playing

Mouthpiece B

Schilke 13D4

• Trumpet

Material—

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.