Detail 01
.675 inch (17.14mm) cup diameter
A larger rim than most high-register pieces. More lip surface engaged, which helps endurance over long sets.
Product detailSKU #1275776903912
SchilkeStandard Series Cornet Mouthpiece Group II in Gold 15A4a Gold
1/8
Independent shopping perspective
The Korena take
Gold-plated Schilke 15A4a cornet mouthpiece: large rim, shallow A cup, tight backbore. Built for upper-register playing without dropping to a small diameter.
Strong match
Who this is for
- High-register cornet parts where a small rim hurts endurance
- Players who want brilliance and projection over a broad, dark sound
- Commercial and brass band work sitting above the staff
Consider the trade-offs
When to look elsewhere
- Players needing depth and warmth in the low register
- Anyone who prefers a free-blowing, open feel — this one resists
- Trumpet players; the cornet shank will not fit
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
The shallowest cup in the line. Brightens the tone and lifts the upper register at the cost of low-end body.
Detail 03
27 throat with tight a-backbore
Adds resistance. You get something to push against up high, but it caps how much air the piece will take.
Detail 04
Number 4 semi-flat rim
Wider, flatter contact patch. Spreads pressure across the lip so high playing is more comfortable for longer.
Detail 05
Gold plating
Slicker feel than silver and no nickel contact. Slightly softer surface, so it shows wear sooner with daily playing.
Detail 06
Cornet shank
Fits cornet receivers only. Trumpet and flugelhorn use different tapers and will not seat properly.
Final check
Know before you order
- 01Mouthpiece only — no pouch or adapter included
- 02The shallow cup thins the low register; keep a deeper piece for legit work
- 03Confirm your horn takes a cornet shank before ordering
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How is the 15A4a different from the 15A4?
Same rim and cup diameter. The 15A4 uses a larger c-backbore for a more open feel; the 15A4a keeps the tight a-backbore and more resistance.
02Is this a lead mouthpiece?
It is built for upper-register playing — shallow A cup, tight backbore — but with a full .675 inch rim rather than a small one.
03Will it work as my only mouthpiece?
The shallow cup trades low-register body for high-register access. Most players keep a deeper piece for orchestral and legato work.
04Does the number 4 rim really help endurance?
It is a semi-flat rim, so pressure spreads over more of the lip instead of concentrating on a narrow edge. That is what extends playing time.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
5 detailsOther
- Category Source
- detail
- Tier
- new
- Korena Special
- false
- Source Id
- site51275776903912
- Prop65
- WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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