Detail 01
17mm cup diameter
The widest in this series. More lip vibrates, which adds body but demands more endurance than the 16mm sizes.

Independent shopping perspective
Gold-plated 2B cornet mouthpiece. The widest cup in the Classic Series with a V backbore and tighter throat, aimed at high-register clarity.

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
The widest in this series. More lip vibrates, which adds body but demands more endurance than the 16mm sizes.
Detail 02
The B suffix marks the V backbore. Compared to the open backbore versions, it trades free airflow for high-register clarity.
Detail 03
Narrower than the 4.572mm open-backbore models. Adds resistance you can lean into instead of air disappearing through the horn.
Detail 04
The narrowest rim in the series. More precise slotting and flexibility, less cushion, so endurance suffers on long sets.
Detail 05
Cornet receivers are smaller than trumpet. This will not seat in a trumpet, flugelhorn, or Eb cornet receiver.
Detail 06
A plated finish over the underlying metal. It wears through at contact points over years and can be replated.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
No. It's a cornet mouthpiece with a cornet shank, which is smaller than a trumpet receiver. It won't seat properly and you'd damage the receiver forcing it.
Both share the 17mm cup and 4.92mm rim. The 2 has an open backbore and 4.572mm throat; the 2B uses a V backbore and tighter 4.27mm throat.
The V backbore and narrow throat are built for high-register clarity. That said, the 17mm cup is the widest offered here, so endurance is the limiting factor.
The 2BW has the same 17mm cup, V backbore, and 4.27mm throat, but a 5.5mm rim instead of 4.92mm. Choose it if you want more comfort and endurance.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.