Detail 01
5C cup
Medium depth. Balances range and tone rather than favoring either. The most common step-up size in the Bach line.

Independent shopping perspective
Bach 5C trumpet mouthpiece in silver plate — a medium cup and rim that works as a step up from stock pieces or an all-around default.

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 depth. Balances range and tone rather than favoring either. The most common step-up size in the Bach line.
Detail 02
Slightly grippier on the lip than gold plate and more durable than raw brass. Can irritate skin in rare cases.
Detail 03
The number is rim diameter (lower is larger), the letter is cup depth. A 5C is medium-medium.
Detail 04
Fits standard Bb and C trumpets. Not for cornet, flugelhorn, or any large-shank instrument.
Detail 05
Entry to mid tier — inexpensive enough to own two and keep one in a spare case.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Not better, just different. The 5C has a slightly larger rim diameter, which many players find gives more tone at the cost of a little endurance.
It will work, but the medium cup does not favor the high register. Lead players usually prefer a shallower cup.
Any difference is subtle. The bigger practical change is feel — silver has more grip on the lip than gold plate.
No. Flugelhorns use a different shank taper. You need a flugelhorn-specific mouthpiece.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.