Denis Wick SM3.5 vs Yamaha AH-37C4
The Denis Wick SM3.5 has a wider cup diameter, the Denis Wick SM3.5 features a deeper cup, the Denis Wick SM3.5 has a larger throat opening.
Cup Diameter
The Denis Wick SM3.5 has a cup diameter of 26.40 mm / 1.0394 in compared to 18.60 mm / 0.7323 in on the Yamaha AH-37C4 — a difference of 7.80 mm / 0.3071 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Denis Wick SM3.5 has a very deep cup while the Yamaha AH-37C4 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Denis Wick SM3.5 has a wider throat (7.62 mm / 0.3000 in vs 5.25 mm / 0.2067 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.