Bruno Tilz 305-D 5 vs Curry 5C
The Bruno Tilz 305-D 5 has a wider cup diameter, the Bruno Tilz 305-D 5 has a larger throat opening.
Cup Diameter
The Bruno Tilz 305-D 5 has a cup diameter of 26.00 mm / 1.0236 in compared to 25.55 mm / 1.0060 in on the Curry 5C — a difference of 0.45 mm / 0.0176 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Bruno Tilz 305-D 5 has a wider throat (6.30 mm / 0.2480 in vs 5.92 mm / 0.2330 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.