Which has a bigger cup — Bob Reeves 42/B/2 or Giardinelli 6B?

The Giardinelli 6B has a cup diameter of 16.70 mm / 0.6575 in compared to 16.67 mm / 0.6563 in on the Bob Reeves 42/B/2 — a difference of 0.03 mm / 0.0012 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bob Reeves 42/B/2 and Giardinelli 6B?

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

Bob Reeves 42/B/2 vs Giardinelli 6B

Name: Giardinelli 6B
Brand: Giardinelli

The Giardinelli 6B 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 42/B/2

• Cornet

Backbore2

Mouthpiece B

Giardinelli 6B

• 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.