Which has a bigger cup — Bach 8½A or Denis Wick RW3?

The Denis Wick RW3 has a cup diameter of 16.75 mm / 0.6594 in compared to 16.10 mm / 0.6339 in on the Bach 8½A — a difference of 0.65 mm / 0.0256 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 8½A and Denis Wick RW3?

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

Bach 8½A vs Denis Wick RW3

Name: Denis Wick RW3
Brand: Denis Wick

The Denis Wick RW3 has a wider cup diameter, the Denis Wick RW3 has a larger throat opening.

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

Bach 8½A

• Cornet

Backbore—

Mouthpiece B

Denis Wick RW3

• Cornet

Backboreopen

Best suited for

📣High-volume projection — open throat for power

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.