Marcinkiewicz CH 17S vs Marcinkiewicz CH R 15S
the Marcinkiewicz CH R 15S has a larger throat opening.
Mouthpiece A
Marcinkiewicz CH 17S
• French Horn
Cup diameter17.42 mm / 0.6858 in
Cup depthVery deep
Rim width—
Throat diameter4.39 mm / 0.1728 in
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH R 15S
• French Horn
Cup diameter17.42 mm / 0.6858 in
Cup depthVery deep
Rim width—
Throat diameter4.57 mm / 0.1799 in
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 17.42 mm / 0.6858 in.
Cup Depth
Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Marcinkiewicz CH R 15S has a wider throat (4.57 mm / 0.1799 in vs 4.39 mm / 0.1728 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.