Detail 01
.624 inch cup diameter
Smallest in the group and .046 inch under the all-around 14. That is a large gap in rim terms.
Product detailSKU #1275776904296
SchilkeStandard Series Trumpet Mouthpiece Group I in Gold 5A4 Gold
1/8
Independent shopping perspective
The Korena take
The smallest cup in Schilke's Group I at .624 inch, gold-plated. A dedicated upper-register piece, commonly used on piccolo trumpet.
Strong match
Who this is for
- Piccolo trumpet players wanting a small-diameter dedicated mouthpiece
- High-register work where a full-size cup wears you out
- Doublers who want a clearly different feel from their main piece
Consider the trade-offs
When to look elsewhere
- Full-time Bb playing — .624 is far under the .670 middle
- Players with fuller lips; small diameters crowd the embouchure
- Anyone looking for one mouthpiece to cover everything
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
A cup
Schilke's shallow cup designation, shared with the 6A4a and 14A4a. Less volume under the lip.
Detail 03
4 rim
The semi-flat contour Schilke pairs with endurance across the line, rather than the rounder standard #3.
Detail 04
26 throat
Standard throat, not the tighter 27 used on the a-backbore models. Less restriction than the dedicated lead pieces.
Detail 05
Standard Series, not Heavyweight
Regular blank mass. The Heavyweight models are a separate set with extra metal around the same dimensions.
Detail 06
Popular on piccolo
The pieces designed specifically for Schilke piccolos are the x-backbore 11Ax and 14A4x, which blow more openly.
Final check
Know before you order
- 01Mouthpiece only — no case, pouch or cleaning brush.
- 02If it's for piccolo, confirm the shank your horn takes before ordering.
- 03Small diameters expose weak embouchure habits. Expect an adjustment period.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can I use this on a regular Bb trumpet?
Yes, it's a trumpet mouthpiece. At .624 inch it's small for full-time Bb work, so most players keep it as a high-register or piccolo piece.
02What does 5A4 mean?
5 is the cup diameter step, A is Schilke's shallow cup, and 4 is the semi-flat rim contour used on the endurance-focused models.
03Is there a version with a tighter backbore?
Not this model. The tight a-backbore pieces are the 6A4a, 10A4a, 12A4a, 13A4a and 14A4a.
04Does gold plating change the dimensions?
No. Cup diameter, rim and throat are the same regardless of plating. The difference is the finish and the price.
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
- site51275776904296
- 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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