Which has a bigger cup — Bach 3C or Schilke 13D4?

The Schilke 13D4 has a cup diameter of 16.89 mm / 0.6650 in compared to 16.30 mm / 0.6417 in on the Bach 3C — 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 3C and Schilke 13D4?

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

Bach 3C 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

The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.

Mouthpiece A

Bach 3C

• Trumpet

Throat diameter3.66 mm / 0.1441 in

Best suited for

🎵All-round versatile — balanced cup for general playing

Mouthpiece B

Schilke 13D4

• Trumpet

Throat diameter3.66 mm / 0.1441 in

Throat Diameter

Throat diameters are essentially identical at 3.66 mm / 0.1441 in, so resistance feel will be comparable.

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 3C details Schilke 13D4 details Bach 3C equivalents Schilke 13D4 equivalents

Bach 3C vs Schilke 13D4

Throat Diameter

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Bach 3C with others

Compare Schilke 13D4 with others

Popular Trumpet comparisons

Bach vs Schilke

Browse by specification