Bach 5C Flugel vs Bob Reeves 43N/HF
The Bob Reeves 43N/HF has a wider cup diameter, the Bob Reeves 43N/HF features a deeper cup.
Mouthpiece A
Bach 5C Flugel
• Flugelhorn
Cup diameter16.25 mm
Cup depthMedium
Rim width—
Throat diameter3.99 mm
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
High-volume projection — open throat for power
vs
Mouthpiece B
Bob Reeves 43N/HF
• Flugelhorn
Cup diameter17.07 mm
Cup depthVery deep
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
Cup Diameter
The Bob Reeves 43N/HF has a cup diameter of 17.07 mm compared to 16.25 mm on the Bach 5C Flugel — a difference of +0.82 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bob Reeves 43N/HF has a very deep cup while the Bach 5C Flugel 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.