Bob Reeves 40/HF vs Yamaha FH-SHEW
The Yamaha FH-SHEW has a wider cup diameter, the Bob Reeves 40/HF features a deeper cup.
Mouthpiece A
Bob Reeves 40/HF
• Flugelhorn
Cup diameter15.88 mm
Cup depthVery deep
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
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 Yamaha FH-SHEW has a cup diameter of 16.54 mm compared to 15.88 mm on the Bob Reeves 40/HF — a difference of +0.66 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bob Reeves 40/HF has a very deep cup while the Yamaha FH-SHEW 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.