Which has a bigger cup — Bach 5C or Bach 5V?

Both mouthpieces have virtually identical cup diameters at 16.25 mm / 0.6398 in.

How does cup depth compare between Bach 5C and Bach 5V?

The Bach 5V has a very deep cup while the Bach 5C has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 5C vs Bach 5V

Name: Bach 5V
Brand: Bach

the Bach 5V features a deeper cup, the Bach 5V has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Bach 5C

• Trumpet

Rim width—

Best suited for

🎵All-round versatile — balanced cup for general playing

Mouthpiece B

Bach 5V

• Trumpet

Rim width—

Best suited for

📣High-volume projection — open throat for power

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.