Bob Reeves Piccolo 40/B/2 vs Yamaha TR-16C4
The Yamaha TR-16C4 has a wider cup diameter, the Bob Reeves Piccolo 40/B/2 features a deeper cup.
Mouthpiece A
Bob Reeves Piccolo 40/B/2
• Trumpet
Cup diameter15.88 mm / 0.6252 in
Cup depthVery deep
Rim width—
Throat diameter—
Backbore2
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
The Yamaha TR-16C4 has a cup diameter of 17.00 mm / 0.6693 in compared to 15.88 mm / 0.6252 in on the Bob Reeves Piccolo 40/B/2 — a difference of 1.12 mm / 0.0441 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bob Reeves Piccolo 40/B/2 has a very deep cup while the Yamaha TR-16C4 has a medium 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.