Marcinkiewicz 5*W (Endorsee) vs Monette Cornet D3F S7
The Marcinkiewicz 5*W (Endorsee) has a wider cup diameter, the Monette Cornet D3F S7 features a deeper cup, 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 D3F S7
• Cornet
Cup diameter16.30 mm / 0.6417 in
Cup Diameter
The Marcinkiewicz 5*W (Endorsee) has a cup diameter of 16.76 mm / 0.6598 in compared to 16.30 mm / 0.6417 in on the Monette Cornet D3F S7 — a difference of 0.46 mm / 0.0181 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.