Which has a bigger cup — Bach 1B or Giardinelli 17C?

The Bach 1B has a cup diameter of 17.00 mm / 0.6693 in compared to 15.00 mm / 0.5906 in on the Giardinelli 17C — a difference of 2.00 mm / 0.0787 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1B and Giardinelli 17C?

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

Bach 1B vs Giardinelli 17C

Name: Giardinelli 17C
Brand: Giardinelli

The Bach 1B 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 1B

• Cornet

Throat diameter3.66 mm / 0.1441 in

Best suited for

🎻Orchestral playing — large cup for full, dark tone

Mouthpiece B

Giardinelli 17C

• Cornet

Throat diameter—

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.