Bach 1¼C vs Bruno Tilz 200-13 B
the Bach 1¼C has a larger throat opening.
Mouthpiece A
Bach 1¼C
• Trumpet
Cup diameter17.00 mm / 0.6693 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
vs
Mouthpiece B
Bruno Tilz 200-13 B
• Trumpet
CatalogCup diameter17.00 mm / 0.6693 in
Cup depthMedium
Rim width—
Throat diameter3.50 mm / 0.1378 in
Backbore—
Finish—
Material—
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 17.00 mm / 0.6693 in.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Bach 1¼C has a wider throat (3.66 mm / 0.1441 in vs 3.50 mm / 0.1378 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.