Detail 01
.682 inch cup diameter
Medium-large. More lip vibrates inside the rim, so more sound and easier low register, but endurance costs more.

Independent shopping perspective
Gold-plated Schilke Standard Series trumpet mouthpiece, model 17: a .682-inch medium-large cup with the standard 26 throat. A general-purpose piece, not a specialist one.

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-large. More lip vibrates inside the rim, so more sound and easier low register, but endurance costs more.
Detail 02
Schilke's standard bore across most of this series. Neutral resistance — no tight a-backbore squeeze, no wide-open blow.
Detail 03
The larger-diameter tier. Group I tops out near .665 inch; Group II starts at .674 and runs to .720.
Detail 04
Surface finish only. Cup, rim and throat dimensions are identical to the silver version of model 17.
Detail 05
Only .008 and .005 inch wider respectively. Small on paper, noticeable on the face after an hour.
Detail 06
No semi-flat cushion contour. Better flexibility and slotting, less rim surface to spread pressure across.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Cup diameter only, in this order: .674, .677 and .682 inch. All three use the 26 throat. The 17 is the widest and gives the most volume of the three.
Dimensionally it changes nothing — same cup, rim and throat as the silver model 17. You're paying for the plating that contacts your lip, not for a different playing piece.
No. It's a medium-depth, medium-large piece. The shallow A cup models with the tight a-backbore, like the 15A4A, are the ones built for upper register work.
It's the drill size of the hole below the cup. 26 is Schilke's standard across most of the Standard Series. Smaller numbers, like 27, are tighter and add resistance.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.