Detail 01
17.33mm / .682 inch cup diameter
Medium to large. More lip inside the rim than a 14, which favors low and middle range over sustained high work.

Independent shopping perspective
A heavyweight-blank trumpet mouthpiece in the medium 17 size, for players who want a middle-of-the-road cup with more mass behind it.

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
Medium to large. More lip inside the rim than a 14, which favors low and middle range over sustained high work.
Detail 02
The standard opening on the medium models here. Keeps blowing resistance conventional rather than unusually open or tight.
Detail 03
Extra mass in the blank. Adds resistance and a more centered slot; the horn feels less lively but the sound stays more focused.
Detail 04
Common finish, smooth against the lip. Some players react to silver; gold plating is the usual alternative if so.
Detail 05
Sits between the 15 and 18. It is the compromise option — no strong bias toward high register or toward big low-end.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
More metal mass around the cup. It adds resistance and centers the sound, at the cost of some of the free-blowing responsiveness a lighter blank gives.
The 13 is the student-oriented size in this series, with a rounder rim for quick response. The 17 is a larger diameter aimed at more developed players.
Not primarily. The shallow A-cup models with tight backbores are the ones built for upper register. The 17 is a medium all-around cup.
It uses a standard trumpet shank, so it fits standard Bb and C trumpets. It will not fit cornet or flugelhorn receivers.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.