Bob Reeves 40/C/692sL vs Denis Wick RW3
The Denis Wick RW3 has a wider cup diameter, the Denis Wick RW3 features a deeper cup.
Mouthpiece A
Bob Reeves 40/C/692sL
• Cornet
Cup diameter15.88 mm / 0.6252 in
Cup depthDeep
Rim width—
Throat diameter—
Backbore692sL
Finish—
Material—
vs
Mouthpiece B
Denis Wick RW3
• Cornet
Cup diameter16.75 mm / 0.6594 in
Cup depthVery deep
Rim width5.05 mm / 0.1988 in
Throat diameter4.57 mm / 0.1799 in
Backboreopen
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Denis Wick RW3 has a cup diameter of 16.75 mm / 0.6594 in compared to 15.88 mm / 0.6252 in on the Bob Reeves 40/C/692sL — a difference of 0.87 mm / 0.0343 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Denis Wick RW3 has a very deep cup while the Bob Reeves 40/C/692sL has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.