Which has a bigger cup — Bob Reeves 43/SV/692sL or Giardinelli 3S?

The Bob Reeves 43/SV/692sL 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 43/SV/692sL and Giardinelli 3S?

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

Bob Reeves 43/SV/692sL vs Giardinelli 3S

Name: Giardinelli 3S
Brand: Giardinelli

The Bob Reeves 43/SV/692sL has a wider cup diameter.

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

The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Bob Reeves 43/SV/692sL

• Cornet

Rim width—

Mouthpiece B

Giardinelli 3S

• Cornet

Rim width—

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.