Bob Reeves Piccolo 43W/SV/692sL vs Schilke 13A4a
The Bob Reeves Piccolo 43W/SV/692sL has a wider cup diameter.
Mouthpiece A
Bob Reeves Piccolo 43W/SV/692sL
• Trumpet
Cup diameter17.07 mm / 0.6720 in
Cup depthShallow
Rim width—
Throat diameter—
Backbore692sL
Finish—
Material—
vs
Mouthpiece B
Schilke 13A4a
• Trumpet
Cup diameter16.76 mm / 0.6598 in
Cup depthShallow
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore27
Finish—
Material—
Cup Diameter
The Bob Reeves Piccolo 43W/SV/692sL has a cup diameter of 17.07 mm / 0.6720 in compared to 16.76 mm / 0.6598 in on the Schilke 13A4a — a difference of 0.31 mm / 0.0122 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a shallow cup depth, so the sound character from depth alone will be very similar.
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.