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

The Bob Reeves 43W/S/X has a cup diameter of 17.07 mm / 0.6720 in compared to 17.00 mm / 0.6693 in on the Giardinelli 3VS — 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 43W/S/X and Giardinelli 3VS?

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

Bob Reeves 43W/S/X vs Giardinelli 3VS

Name: Giardinelli 3VS
Brand: Giardinelli

The Bob Reeves 43W/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 43W/S/X

• Cornet

BackboreX

Mouthpiece B

Giardinelli 3VS

• 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.