Bob Reeves 40/M/2 vs Giardinelli 10VM
The Giardinelli 10VM has a wider cup diameter.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bob Reeves 40/M/2
• Cornet
Cup diameter15.88 mm / 0.6252 in
vs
Mouthpiece B
Giardinelli 10VM
• Cornet
Cup diameter16.00 mm / 0.6299 in
Best suited for
All-round versatile — balanced cup for general playing
Cup Diameter
The Giardinelli 10VM has a cup diameter of 16.00 mm / 0.6299 in compared to 15.88 mm / 0.6252 in on the Bob Reeves 40/M/2 — a difference of 0.12 mm / 0.0047 in. A wider cup generally produces a fuller, darker tone but requires more air support.
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.