Bruno Tilz 200-13 vs Yamaha TR-11A4
The Bruno Tilz 200-13 has a wider cup diameter, the Yamaha TR-11A4 has a larger throat opening.
Cup Diameter
The Bruno Tilz 200-13 has a cup diameter of 16.50 mm / 0.6496 in compared to 16.46 mm / 0.6480 in on the Yamaha TR-11A4 — a difference of 0.04 mm / 0.0016 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a very shallow cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Yamaha TR-11A4 has a wider throat (3.65 mm / 0.1437 in vs 3.60 mm / 0.1417 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.