Yamaha TR-16C4-GP vs Yamaha TR-16C4
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Yamaha TR-16C4-GP
• Trumpet
Cup diameter17.00 mm / 0.6693 in
Cup depthMedium
Rim width—
Throat diameter3.65 mm / 0.1437 in
BackboreSemi-narrow
Finish—
Material—
vs
Mouthpiece B
Yamaha TR-16C4
• Trumpet
Cup diameter17.00 mm / 0.6693 in
Cup depthMedium
Rim width—
Throat diameter3.65 mm / 0.1437 in
BackboreSemi-narrow
Finish—
Material—
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 17.00 mm / 0.6693 in.
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.