Bach 16 vs Marcinkiewicz CH 1S
The Marcinkiewicz CH 1S has a wider cup diameter, the Bach 16 features a deeper cup, the Marcinkiewicz CH 1S has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bach 16
• French Horn
Cup diameter16.25 mm / 0.6398 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH 1S
• French Horn
Cup diameter17.91 mm / 0.7051 in
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Marcinkiewicz CH 1S has a cup diameter of 17.91 mm / 0.7051 in compared to 16.25 mm / 0.6398 in on the Bach 16 — a difference of 1.66 mm / 0.0654 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.