Schilke 51D vs Yamaha EP-51DS
The Schilke 51D has a wider cup diameter, the Yamaha EP-51DS features a deeper cup, the Yamaha EP-51DS has a larger throat opening.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Schilke 51D
• Baritone / Euphonium
Throat diameter7.04 mm / 0.2772 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Yamaha EP-51DS
• Baritone / Euphonium
Throat diameter7.11 mm / 0.2799 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Throat Diameter
The Yamaha EP-51DS has a wider throat (7.11 mm / 0.2799 in vs 7.04 mm / 0.2772 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.