Bach Mega Tone Trombone 5GS vs Schilke 45B
The Bach Mega Tone Trombone 5GS has a wider cup diameter, the Bach Mega Tone Trombone 5GS features a deeper cup, the Bach Mega Tone Trombone 5GS has a larger throat opening.
Cup Diameter
The Bach Mega Tone Trombone 5GS has a cup diameter of 25.50 mm / 1.0039 in compared to 24.30 mm / 0.9567 in on the Schilke 45B — a difference of 1.20 mm / 0.0472 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach Mega Tone Trombone 5GS has a deep cup while the Schilke 45B has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bach Mega Tone Trombone 5GS has a wider throat (6.73 mm / 0.2650 in vs 5.95 mm / 0.2343 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 Mega Tone Trombone 5GS with others
Compare Schilke 45B with others
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