Which has a bigger cup — Denis Wick 12CS or Denis Wick 9BS?

The Denis Wick 9BS has a cup diameter of 25.00 mm / 0.9843 in compared to 24.50 mm / 0.9646 in on the Denis Wick 12CS — a difference of 0.50 mm / 0.0197 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Denis Wick 12CS and Denis Wick 9BS?

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

Denis Wick 12CS vs Denis Wick 9BS

Name: Denis Wick 9BS
Brand: Denis Wick

The Denis Wick 9BS has a wider cup diameter, the Denis Wick 9BS 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

Denis Wick 12CS

• Trombone

BackboreV-type

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Denis Wick 9BS

• Trombone

BackboreV-type

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.