Bob Reeves 43N/DF vs Denis Wick SFL
The Bob Reeves 43N/DF has a wider cup diameter, the Bob Reeves 43N/DF features a deeper cup.
Mouthpiece A
Bob Reeves 43N/DF
• Flugelhorn
Cup diameter17.07 mm / 0.6720 in
Cup depthDeep
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Denis Wick SFL
• Flugelhorn
Cup diameter16.00 mm / 0.6299 in
Cup depthMedium
Rim width5.30 mm / 0.2087 in
Throat diameter4.45 mm / 0.1752 in
Backboreopen
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
High-volume projection — open throat for power
Cup Diameter
The Bob Reeves 43N/DF has a cup diameter of 17.07 mm / 0.6720 in compared to 16.00 mm / 0.6299 in on the Denis Wick SFL — a difference of 1.07 mm / 0.0421 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bob Reeves 43N/DF has a deep cup while the Denis Wick SFL has a medium 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.