Detail 01
17mm cup diameter
Largest in the Classic Series. More lip vibrates inside the cup, giving a bigger sound but demanding more endurance.

Independent shopping perspective
Silver-plated cornet mouthpiece in Denis Wick's 2B size: the widest cup in the Classic range paired with a narrow rim and tight V backbore.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Largest in the Classic Series. More lip vibrates inside the cup, giving a bigger sound but demanding more endurance.
Detail 02
Narrow rim. Favors flexibility and clean articulation over cushion, so long sessions tire the lip faster.
Detail 03
Tighter than the 4.572mm throat on the open-backbore models. More resistance to push against, which steadies pitch up high.
Detail 04
Funnels and focuses the air column, tightening the sound. The plain 2 with its open backbore blows freer and spreads wider.
Detail 05
Cup and rim match the plain 2 exactly. The B swaps in the narrower throat and V backbore.
Detail 06
Slightly grippier on the lip than raw brass and it wears at contact points over years. Replating is routine repair work.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Cornet. The shank is cut for a cornet receiver and won't seat correctly in a trumpet.
Both use a 17mm cup and 4.92mm rim. The 2 has a 4.572mm throat and open backbore; the 2B tightens to 4.27mm with a V backbore for a more focused sound.
The 3B has a smaller 16.75mm cup and wider 5.05mm rim, described as brilliant and very focused. The 2B is the bigger cup with the narrower rim.
The narrow throat and V backbore add resistance, which most players find makes the top easier to control. The 17mm cup still takes real air.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.