How does cup depth compare between Bach 3C and Bob Reeves EV5?

The Bach 3C has a medium cup while the Bob Reeves EV5 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 3C vs Bob Reeves EV5

Name: Bob Reeves EV5
Brand: Bob Reeves

the Bach 3C features a deeper cup.

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

The internal diameter of the cup, measured at the widest point inside the rim.

Mouthpiece A

Bach 3C

• Trumpet

Cup diameter16.30 mm / 0.6417 in

Best suited for

🎵All-round versatile — balanced cup for general playing

Mouthpiece B

Bob Reeves EV5

• Trumpet

Cup 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.