Which has a bigger cup — Bob Reeves 40/B/692 or Bob Reeves 40/D/2?

Both mouthpieces have virtually identical cup diameters at 15.88 mm / 0.6252 in.

How does cup depth compare between Bob Reeves 40/B/692 and Bob Reeves 40/D/2?

The Bob Reeves 40/B/692 has a very deep cup while the Bob Reeves 40/D/2 has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bob Reeves 40/B/692 vs Bob Reeves 40/D/2

Name: Bob Reeves 40/D/2
Brand: Bob Reeves

the Bob Reeves 40/B/692 features a deeper cup.

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

Bob Reeves 40/B/692

• Cornet

Rim width—

Mouthpiece B

Bob Reeves 40/D/2

• Cornet

Rim width—

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.