Schilke 52E2 vs Yamaha SL-YEO-S
The Yamaha SL-YEO-S has a wider cup diameter, the Schilke 52E2 features a deeper cup.
Mouthpiece A
Schilke 52E2
• Trombone
Cup diameter25.91 mm / 1.0201 in
Cup depthVery deep
Rim width—
Throat diameter—
BackboreJ.277
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Yamaha SL-YEO-S
• Trombone
Cup diameter28.72 mm / 1.1307 in
Cup depthDeep
Rim width—
Throat diameter8.00 mm / 0.3150 in
BackboreSemi-wide
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
The Yamaha SL-YEO-S has a cup diameter of 28.72 mm / 1.1307 in compared to 25.91 mm / 1.0201 in on the Schilke 52E2 — a difference of 2.81 mm / 0.1106 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Schilke 52E2 has a very deep cup while the Yamaha SL-YEO-S has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.