Bach 5B vs Bach Mega Tone Cornet 5B
the Bach Mega Tone Cornet 5B has a larger throat opening.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Bach 5B
• Cornet
Throat diameter3.66 mm / 0.1441 in
vs
Mouthpiece B
Bach Mega Tone Cornet 5B
• Cornet
Throat diameter3.73 mm / 0.1469 in
Throat Diameter
The Bach Mega Tone Cornet 5B has a wider throat (3.73 mm / 0.1469 in vs 3.66 mm / 0.1441 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.