Bob Reeves 42/M/2 vs Monette Cornet C4LVS
The Bob Reeves 42/M/2 has a wider cup diameter.
Mouthpiece A
Bob Reeves 42/M/2
• Cornet
Cup diameter16.67 mm / 0.6563 in
Cup depthMedium
Rim width—
Throat diameter—
Backbore2
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
Monette Cornet C4LVS
• Cornet
Cup diameter16.20 mm / 0.6378 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
Cup Diameter
The Bob Reeves 42/M/2 has a cup diameter of 16.67 mm / 0.6563 in compared to 16.20 mm / 0.6378 in on the Monette Cornet C4LVS — a difference of 0.47 mm / 0.0185 in. 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.