Detail 01
.665 in cup diameter
Mid-size for trumpet. Full tone without the embouchure strength the largest diameters demand over a long rehearsal.

Independent shopping perspective
Silver-plated Schilke trumpet mouthpiece, .665-inch cup with a medium C cup and semi-flat number 4 rim. A mid-size all-purpose piece for students and general playing.

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
Mid-size for trumpet. Full tone without the embouchure strength the largest diameters demand over a long rehearsal.
Detail 02
Medium depth. Adds volume and body to the tone instead of the brightness a shallow A cup gives.
Detail 03
Flatter contact spreads pressure over more lip. That's why players choose it when endurance is the limiting factor.
Detail 04
Standard bore. Blows with familiar resistance, so there's no adjustment period coming off most stock mouthpieces.
Detail 05
Schilke's smaller-diameter range. If your current rim measures near .690 inch, this will feel noticeably tight.
Detail 06
Standard finish with a little more grip than bare brass. Keep it dry between sessions to slow tarnish.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
.665 inch cup diameter with a 26 throat, a medium C cup and the semi-flat number 4 rim.
Yes. Schilke lists the 13 as an ideal choice for a student or developing player, with quick response and enough cup volume for tone.
The A cup is shallower and pairs with a tighter backbore for upper-register work. The C cup here is deeper and gives more volume and body.
No. Cornet mouthpieces use a different shank. Schilke's cornet models are listed separately in the Group II range.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.