Which has a bigger cup — Bach 1¼C or Bach Mega Tone 1D?

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

How does cup depth compare between Bach 1¼C and Bach Mega Tone 1D?

The Bach 1¼C has a medium cup while the Bach Mega Tone 1D has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 1¼C vs Bach Mega Tone 1D

Name: Bach Mega Tone 1D
Brand: Bach

the Bach 1¼C features a deeper cup, the Bach Mega Tone 1D has a larger throat opening.

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 1¼C

• Trumpet

Backbore—

Mouthpiece B

Bach Mega Tone 1D

• 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.