Detail 01
.630 inch cup diameter
The smallest in the Standard series. Less lip vibrating means less effort up high, but noticeably less low-register body.
Product detailSKU #1275776904134
SchilkeStandard Series Trumpet Mouthpiece Group I 6A4a Silver
1/8
Independent shopping perspective
The Korena take
Schilke 6A4a in silver plate. Small, shallow mouthpiece with a cushion rim and tight backbore, made for players who live in the extreme upper register.
Strong match
Who this is for
- Lead trumpet in big band or commercial horn sections
- Players who need screaming high notes night after night
- Doublers who want a dedicated high-register piece
Consider the trade-offs
When to look elsewhere
- Concert band and orchestral players needing a full, dark tone
- Beginners — the shallow cup masks fundamental technique problems
- Anyone wanting one mouthpiece for all playing situations
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
Minimal volume before the throat. Bright and cutting, easier top range, thinner sound in the staff.
Detail 03
Number 4 cushion rim
Wide, semi-flat rim that spreads pressure across more of the lip. Buys endurance on long high sets.
Detail 04
27 throat
Slightly larger than the 26 on standard-cup models, offsetting some resistance the shallow cup adds.
Detail 05
a-backbore
Tight backbore that adds resistance behind the shallow cup, concentrating the sound and supporting the top end.
Final check
Know before you order
- 01Mouthpiece only. No pouch or case included.
- 02The cushion rim feels very different from a standard rim — expect an adjustment period.
- 03Keep your regular mouthpiece for concert and legit playing.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this give me high notes right away?
It reduces the effort up high, but it doesn't build range. The shallow cup and small diameter help players who already have the chops and air behind them.
02What's the difference between the 6A4a and the 13A4a?
Both use the shallow A cup, number 4 rim and tight a-backbore. The 6A4a is smaller at .630 inch versus .660, so it pushes further toward extreme high register.
03Can I use it as my only mouthpiece?
Not recommended. The shallow cup gives up low-register body and tonal weight, which makes concert band and orchestral work harder than it needs to be.
04What does the cushion rim actually do?
The number 4 rim is wide and semi-flat, spreading mouthpiece pressure over more lip area. That reduces cutoff on long sets, though it can dull articulation feel.
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
- site51275776904134
- 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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