Bach 1¼G vs Bach Mega Tone Trombone 11C
The Bach 1¼G has a wider cup diameter, the Bach 1¼G features a deeper cup, the Bach 1¼G has a larger throat opening.
Cup Diameter
The Bach 1¼G has a cup diameter of 27.50 mm / 1.0827 in compared to 24.70 mm / 0.9724 in on the Bach Mega Tone Trombone 11C — a difference of 2.80 mm / 0.1102 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 1¼G has a very deep cup while the Bach Mega Tone Trombone 11C has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bach 1¼G has a wider throat (7.01 mm / 0.2760 in vs 5.85 mm / 0.2303 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.
Compare Bach 1¼G with others
Compare Bach Mega Tone Trombone 11C with others
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