Detail 01
Signature series
Rim and cup are specified together to one player's requirements, not assembled from a general catalog of parts.

Independent shopping perspective
Trumpet mouthpiece from Bobby Shew's signature line, the E9.1 cup at #1.5. The largest number in this three-piece set.

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
Rim and cup are specified together to one player's requirements, not assembled from a general catalog of parts.
Detail 02
The maker's model code for this cup. Quote it rather than the #1.5 label when reordering to avoid confusion.
Detail 03
The highest number of the three Shew sizes here, marking one end of the range.
Detail 04
Fits standard trumpet receivers only. Cornet and flugelhorn use their own shank sizes.
Detail 05
Priced as a professional signature piece, so working through several sizes is a real cost to plan for.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Compare each against the mouthpiece you play now. If you have no reference point, talk to your teacher or a brass tech before spending on a signature piece.
Yes. It uses a standard trumpet shank, so it seats in a normal trumpet receiver. It will not fit a cornet or flugelhorn.
The mouthpiece by itself.
Warm soapy water and a mouthpiece brush. Rinse fully and dry before putting it back in the horn.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.