Bob Reeves 41/D/692s vs Marcinkiewicz 5*W (Endorsee)
The Marcinkiewicz 5*W (Endorsee) has a wider cup diameter, the Bob Reeves 41/D/692s features a deeper cup.
Mouthpiece A
Bob Reeves 41/D/692s
• Cornet
Cup diameter16.27 mm / 0.6406 in
Cup depthDeep
Rim width—
Throat diameter—
Backbore692s
Finish—
Material—
vs
Mouthpiece B
Marcinkiewicz 5*W (Endorsee)
• Cornet
Cup diameter16.76 mm / 0.6598 in
Cup depthVery shallow
Rim width—
Throat diameter3.91 mm / 0.1539 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Marcinkiewicz 5*W (Endorsee) has a cup diameter of 16.76 mm / 0.6598 in compared to 16.27 mm / 0.6406 in on the Bob Reeves 41/D/692s — a difference of 0.49 mm / 0.0193 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bob Reeves 41/D/692s has a deep cup while the Marcinkiewicz 5*W (Endorsee) has a very shallow 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.