Which has a bigger cup — Bob Reeves 43N/S/X or Giardinelli 3S?

The Bob Reeves 43N/S/X has a cup diameter of 17.07 mm / 0.6720 in compared to 17.00 mm / 0.6693 in on the Giardinelli 3S — a difference of 0.07 mm / 0.0028 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bob Reeves 43N/S/X and Giardinelli 3S?

Both mouthpieces share a shallow cup depth, so the sound character from depth alone will be very similar.

Bob Reeves 43N/S/X vs Giardinelli 3S

Name: Giardinelli 3S
Brand: Giardinelli

The Bob Reeves 43N/S/X has a wider cup diameter.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

The taper behind the throat leading to the shank. Affects projection and tone character.

Mouthpiece A

Bob Reeves 43N/S/X

• Cornet

BackboreX

Mouthpiece B

Giardinelli 3S

• Cornet

Backbore—

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.