Which has a bigger cup — Bach 1½C or Giardinelli 3VS?

Both mouthpieces have virtually identical cup diameters at 17.00 mm / 0.6693 in.

How does cup depth compare between Bach 1½C and Giardinelli 3VS?

The Bach 1½C has a medium cup while the Giardinelli 3VS has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 1½C vs Giardinelli 3VS

Name: Giardinelli 3VS
Brand: Giardinelli

the Bach 1½C features a deeper cup.

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 1½C

• Cornet

Backbore—

Mouthpiece B

Giardinelli 3VS

• Cornet

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.