Bob Reeves 42/ES/692 vs Yamaha TR-SHEW-LEAD
The Bob Reeves 42/ES/692 has a wider cup diameter.
Mouthpiece A
Bob Reeves 42/ES/692
• Trumpet
Cup diameter16.67 mm
Cup depthVery shallow
Rim width—
Throat diameter—
Backbore692
Finish—
Material—
vs
Mouthpiece B
Yamaha TR-SHEW-LEAD
• Trumpet
Cup diameter16.54 mm
Cup depthVery shallow
Rim width—
Throat diameter3.56 mm
BackboreNarrow
Finish—
Material—
Best suited for
Screamer / high notes — tight throat with shallow cup
Cup Diameter
The Bob Reeves 42/ES/692 has a cup diameter of 16.67 mm compared to 16.54 mm on the Yamaha TR-SHEW-LEAD — a difference of +0.13 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a very 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.