Bach 1¼G vs Curry 2D Large Shank
The Bach 1¼G has a wider cup diameter, the Curry 2D Large Shank has a larger throat opening.
Cup Diameter
The Bach 1¼G has a cup diameter of 27.50 mm / 1.0827 in compared to 27.46 mm / 1.0810 in on the Curry 2D Large Shank — a difference of 0.04 mm / 0.0017 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 Curry 2D Large Shank has a wider throat (7.32 mm / 0.2880 in vs 7.01 mm / 0.2760 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.