Bach 1½C vs Denis Wick 5X
The Bach 1½C has a wider cup diameter, the Bach 1½C features a deeper cup, the Denis Wick 5X has a larger throat opening.
Cup Diameter
The Bach 1½C has a cup diameter of 17.00 mm / 0.6693 in compared to 16.00 mm / 0.6299 in on the Denis Wick 5X — a difference of 1.00 mm / 0.0394 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 1½C has a medium cup while the Denis Wick 5X 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 5X has a wider throat (3.74 mm / 0.1472 in vs 3.66 mm / 0.1441 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.