Denis Wick 1 vs Yamaha BB-66B
The Denis Wick 1 has a wider cup diameter, the Denis Wick 1 features a deeper cup, the Denis Wick 1 has a larger throat opening.
Cup Diameter
The Denis Wick 1 has a cup diameter of 32.50 mm / 1.2795 in compared to 31.37 mm / 1.2350 in on the Yamaha BB-66B — a difference of 1.13 mm / 0.0445 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Denis Wick 1 has a very deep cup while the Yamaha BB-66B has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Denis Wick 1 has a wider throat (8.43 mm / 0.3319 in vs 8.35 mm / 0.3287 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.