Marcinkiewicz CH 15 vs Marcinkiewicz CH 12S
the Marcinkiewicz CH 12S has a larger throat opening.
Mouthpiece A
Marcinkiewicz CH 15
• Trumpet
Cup diameter16.31 mm
Cup depthVery deep
Rim width—
Throat diameter3.66 mm
Backbore—
Finish—
Material—
vs
Mouthpiece B
Marcinkiewicz CH 12S
• Trumpet
Cup diameter16.31 mm
Cup depthVery deep
Rim width—
Throat diameter3.73 mm
Backbore—
Finish—
Material—
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 16.31 mm.
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 12S has a wider throat (3.73 mm vs 3.66 mm). 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.