Denis Wick 5 vs Yamaha HR-32-GP
The Denis Wick 5 has a wider cup diameter, the Denis Wick 5 has a larger throat opening.
Cup Diameter
The Denis Wick 5 has a cup diameter of 17.50 mm / 0.6890 in compared to 17.48 mm / 0.6882 in on the Yamaha HR-32-GP — a difference of 0.02 mm / 0.0008 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 Denis Wick 5 has a wider throat (4.58 mm / 0.1803 in vs 4.40 mm / 0.1732 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.