Bob Reeves 40/B/X vs Denis Wick 4B
The Denis Wick 4B has a wider cup diameter, the Bob Reeves 40/B/X features a deeper cup.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Bob Reeves 40/B/X
• Cornet
Rim width—
vs
Mouthpiece B
Denis Wick 4B
• Cornet
Rim width5.17 mm / 0.2035 in
Best suited for
All-round versatile — balanced cup for general playing
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.