Bob Reeves 43.5/S/X vs Giardinelli 1VS
The Giardinelli 1VS has a wider cup diameter.
Mouthpiece A
Bob Reeves 43.5/S/X
• Cornet
Cup diameter17.26 mm / 0.6795 in
Cup depthShallow
Rim width—
Throat diameter—
BackboreX
Finish—
Material—
vs
Mouthpiece B
Giardinelli 1VS
• Cornet
Cup diameter17.50 mm / 0.6890 in
Cup depthShallow
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Cup Diameter
The Giardinelli 1VS has a cup diameter of 17.50 mm / 0.6890 in compared to 17.26 mm / 0.6795 in on the Bob Reeves 43.5/S/X — a difference of 0.24 mm / 0.0094 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a 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.