Bach 10½C vs Bob Reeves Piccolo 40/B/2
The Bach 10½C has a wider cup diameter, the Bob Reeves Piccolo 40/B/2 features a deeper cup.
Mouthpiece A
Bach 10½C
• Trumpet
Cup diameter15.90 mm / 0.6260 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
vs
Mouthpiece B
Bob Reeves Piccolo 40/B/2
• Trumpet
Cup diameter15.88 mm / 0.6252 in
Cup depthVery deep
Rim width—
Throat diameter—
Backbore2
Finish—
Material—
Cup Diameter
The Bach 10½C has a cup diameter of 15.90 mm / 0.6260 in compared to 15.88 mm / 0.6252 in on the Bob Reeves Piccolo 40/B/2 — a difference of 0.02 mm / 0.0008 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 Bach 10½C 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.