Detail 01
.675 inch cup diameter
Large for a lead piece. More lip inside the rim, so it feels less pinched than typical high-note mouthpieces.
Product detailSKU #1275776903984
SchilkeStandard Series Trumpet Mouthpiece in Silver Group II 15A4a Silver
Independent shopping perspective
The Korena take
A lead trumpet mouthpiece: wide .675 inch rim, shallow cup, tight backbore. For players who work above the staff and want comfort while they do it.
Strong match
Who this is for
- Lead trumpet in big band, show pit or horn-section work
- Players wanting upper-register help without dropping to a tiny rim
- Long sets where a sharp, narrow rim wears the lip out
Consider the trade-offs
When to look elsewhere
- Orchestral and concert work needing a deep, dark cup
- Beginners still building tone and air on a standard cup
- Players who need a strong, full low register from one piece
What matters in use
The specifications, translated
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 02
Shallow A cup
Less cup volume brightens the sound and raises resistance, which is what makes high notes speak more easily.
Detail 03
Tight a-backbore
Extra resistance behind the throat. Notes slot firmly and cut, at the cost of easy volume down low.
Detail 04
Number 4 semi-flat rim
Wider, flatter contour spreads pressure across the lip. Better endurance, slightly less give on wide slurs.
Detail 05
27 throat
Narrower than the standard 26 throat, concentrating the air rather than letting it spread out.
Detail 06
Silver plating
Finish only. Cup, rim and backbore are the same as the gold version of this model.
Final check
Know before you order
- 01Shallow cups thin the low register — keep a standard cup piece for other playing
- 02Sold as the mouthpiece alone, with no pouch or case
- 03Give it two weeks. A shallow cup changes how you set up before it helps
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is the 15A4a a lead mouthpiece?
Yes. Shallow A cup, tight a-backbore and a semi-flat rim all point at upper-register playing. It is not built as an all-around piece.
02What does the lowercase 'a' at the end mean?
It marks the tight a-backbore. That is the narrower, more resistant bore that firms up the high register and adds edge.
03Will it fit any trumpet?
It uses a standard trumpet shank, so it fits standard trumpet receivers. It will not fit a cornet, which takes a different shank.
04Will my low register suffer?
Some. A shallow cup gives up volume down low in exchange for range and endurance up top. Most players keep a second piece for legit work.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Silver
1 detailsOther
- 15a4a
- 17.14mm, .675 inch cup diameter; 27 throat. A larger diameter mouthpiece with a shallow A cup and tight a-backbore for upper register playing. Number 4 semi-flat rim offers comfort in upper register.
