Schilke 13C4 vs Yamaha TR-SHEW-JAZZ
The Schilke 13C4 has a wider cup diameter.
Mouthpiece A
Schilke 13C4
• Trumpet
Cup diameter16.89 mm / 0.6650 in
Cup depthMedium
Rim width—
Throat diameter3.65 mm / 0.1437 in
Backbore26
Finish—
Material—
vs
Mouthpiece B
Yamaha TR-SHEW-JAZZ
• Trumpet
Cup diameter16.85 mm / 0.6634 in
Cup depthMedium
Rim width—
Throat diameter3.65 mm / 0.1437 in
BackboreStandard
Finish—
Material—
Cup Diameter
The Schilke 13C4 has a cup diameter of 16.89 mm / 0.6650 in compared to 16.85 mm / 0.6634 in on the Yamaha TR-SHEW-JAZZ — a difference of 0.04 mm / 0.0016 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
Throat diameters are essentially identical at 3.65 mm / 0.1437 in, so resistance feel will be comparable.
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.