Bob Reeves 42/B/s vs Schilke 14A4aHeavyweight
The Schilke 14A4aHeavyweight has a wider cup diameter, the Bob Reeves 42/B/s features a deeper cup.
Mouthpiece A
Bob Reeves 42/B/s
• Trumpet
Cup diameter16.67 mm
Cup depthVery deep
Rim width—
Throat diameter—
Backbores
Finish—
Material—
vs
Mouthpiece B
Schilke 14A4aHeavyweight
• Trumpet
Cup diameter17.09 mm
Cup depthShallow
Rim width—
Throat diameter3.66 mm
Backbore27
Finish—
Material—
Cup Diameter
The Schilke 14A4aHeavyweight has a cup diameter of 17.09 mm compared to 16.67 mm on the Bob Reeves 42/B/s — a difference of +0.42 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bob Reeves 42/B/s has a very deep cup while the Schilke 14A4aHeavyweight has a shallow 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.