Bach 1D vs Bruno Tilz 200-18 C
the Bruno Tilz 200-18 C has a larger throat opening.
Mouthpiece A
Bach 1D
• Trumpet
Cup diameter17.00 mm / 0.6693 in
Cup depthShallow
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
vs
Mouthpiece B
Bruno Tilz 200-18 C
• Trumpet
CatalogCup diameter17.00 mm / 0.6693 in
Cup depthShallow
Rim width—
Throat diameter3.70 mm / 0.1457 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 shallow cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Bruno Tilz 200-18 C has a wider throat (3.70 mm / 0.1457 in vs 3.66 mm / 0.1441 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.