Bach 7C vs Bob Reeves 42/SV/692s
The Bob Reeves 42/SV/692s has a wider cup diameter, the Bach 7C features a deeper cup.
Mouthpiece A
Bach 7C
• Trumpet
Cup diameter16.20 mm
Cup depthMedium
Rim width—
Throat diameter3.66 mm
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
Bob Reeves 42/SV/692s
• Trumpet
Cup diameter16.67 mm
Cup depthShallow
Rim width—
Throat diameter—
Backbore692s
Finish—
Material—
Cup Diameter
The Bob Reeves 42/SV/692s has a cup diameter of 16.67 mm compared to 16.20 mm on the Bach 7C — a difference of +0.47 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 7C has a medium cup while the Bob Reeves 42/SV/692s 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.