Bach Mega Tone Trombone 5 vs Schilke 45B
The Bach Mega Tone Trombone 5 has a wider cup diameter, the Schilke 45B has a larger throat opening.
Cup Diameter
The Bach Mega Tone Trombone 5 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
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Schilke 45B has a wider throat (5.95 mm / 0.2343 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 Mega Tone Trombone 5 with others
Compare Schilke 45B with others
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