Bob Reeves 40/B/X vs Monette Cornet AP1-1 S13
The Monette Cornet AP1-1 S13 has a wider cup diameter.
Mouthpiece A
Bob Reeves 40/B/X
• Cornet
Cup diameter15.88 mm / 0.6252 in
Cup depthVery deep
Rim width—
Throat diameter—
BackboreX
Finish—
Material—
vs
Mouthpiece B
Monette Cornet AP1-1 S13
• 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 Monette Cornet AP1-1 S13 has a cup diameter of 17.00 mm / 0.6693 in compared to 15.88 mm / 0.6252 in on the Bob Reeves 40/B/X — a difference of 1.12 mm / 0.0441 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a very deep 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.