Bob Reeves 43.5/C/692 vs Monette Cornet E1-5M S12
The Bob Reeves 43.5/C/692 has a wider cup diameter, the Monette Cornet E1-5M S12 features a deeper cup.
Mouthpiece A
Bob Reeves 43.5/C/692
• Cornet
Cup diameter17.26 mm / 0.6795 in
Cup depthDeep
Rim width—
Throat diameter—
Backbore692
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Monette Cornet E1-5M S12
• Cornet
Cup diameter17.00 mm / 0.6693 in
Cup depthVery deep
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
Cup Diameter
The Bob Reeves 43.5/C/692 has a cup diameter of 17.26 mm / 0.6795 in compared to 17.00 mm / 0.6693 in on the Monette Cornet E1-5M S12 — a difference of 0.26 mm / 0.0102 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Monette Cornet E1-5M S12 has a very deep cup while the Bob Reeves 43.5/C/692 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.