Marcinkiewicz 5*W (Endorsee) vs Monette Cornet E8
The Marcinkiewicz 5*W (Endorsee) has a wider cup diameter, the Marcinkiewicz 5*W (Endorsee) has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Marcinkiewicz 5*W (Endorsee)
• Cornet
Cup diameter16.76 mm / 0.6598 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Monette Cornet E8
• Cornet
Cup diameter15.90 mm / 0.6260 in
Best suited for
Lead / commercial — shallow cup for brightness and range
Cup Diameter
The Marcinkiewicz 5*W (Endorsee) has a cup diameter of 16.76 mm / 0.6598 in compared to 15.90 mm / 0.6260 in on the Monette Cornet E8 — a difference of 0.86 mm / 0.0339 in. A wider cup generally produces a fuller, darker tone but requires more air support.
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.