Bob Reeves 42/F vs Yamaha FH-SHEW
The Bob Reeves 42/F has a wider cup diameter.
Mouthpiece A
Bob Reeves 42/F
• Flugelhorn
Cup diameter16.67 mm
Cup depthMedium
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
Yamaha FH-SHEW
• Flugelhorn
Cup diameter16.54 mm
Cup depthMedium
Rim width—
Throat diameter4.40 mm
BackboreLong taper
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 42/F has a cup diameter of 16.67 mm compared to 16.54 mm on the Yamaha FH-SHEW — a difference of +0.13 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
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.