Curry 7 VC vs Denis Wick 4
The Curry 7 VC has a wider cup diameter, the Denis Wick 4 has a larger throat opening.
Cup Diameter
The Curry 7 VC has a cup diameter of 16.56 mm / 0.6520 in compared to 16.40 mm / 0.6457 in on the Denis Wick 4 — a difference of 0.16 mm / 0.0063 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Denis Wick 4 has a wider throat (4.58 mm / 0.1803 in vs 4.31 mm / 0.1697 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.