Detail 01
.640 inch cup diameter
Small. Easier to control in the upper register, with less lip area to support than a .670" piece.
Product detailSKU #1275776904038
SchilkeStandard Series Cornet Mouthpiece Group I in Gold 8A4 Gold
1/8
Independent shopping perspective
The Korena take
Gold-plated Schilke 8A4 cornet mouthpiece: small .640" cup, funnel-shaped entry, semi-flat #4 rim. For cornet players prioritizing endurance on a small rim.
Strong match
Who this is for
- Cornet players with smaller embouchures wanting a compact rim
- Brass band sections where endurance across long sets matters
- Players seeking a rounder cornet tone rather than trumpet brightness
Consider the trade-offs
When to look elsewhere
- Trumpet players; this is a cornet-shank piece
- Large-diameter players — .640" is at the small end
- Anyone wanting maximum volume of sound; small cups limit that
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
Funnel-shaped cup entry
The gradual taper into the throat is what makes a cornet sound like a cornet — rounder and warmer than a trumpet's bowl cup.
Detail 03
Number 4 semi-flat rim
Wide flat bearing surface spreads pressure over more lip. The main reason to pick this over a rounded rim.
Detail 04
26 throat
Schilke's standard throat size. Normal resistance, not opened up like the 27-throat A-cup lead models.
Detail 05
Gold plating
Slicker and smoother against the lip than silver, and an option if silver plating irritates your skin.
Detail 06
Group I sizing
Schilke's smaller diameter range, roughly .630" to .673". The 8A4 sits near the bottom of it.
Final check
Know before you order
- 01Mouthpiece only — no cornet, case, or pouch
- 02Confirm your cornet's receiver shank; cornet and trumpet shanks differ
- 03Coming from a larger rim, expect weeks of adjustment
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What makes a cornet mouthpiece different from a trumpet one?
The cup shape and the shank. Cornet pieces use a deeper funnel taper into the throat for a rounder, smoother tone, and the shank is sized for a cornet receiver.
02Is .640 inches too small for me?
It's at the small end of Schilke's Group I. Good if you have a compact embouchure or thinner lips. If you're on a .665" or larger, this will feel tight.
03How does the 8A4 compare to the 8E2?
Both are small-diameter. The 8E2 has a deep funnel cup for a smooth, flexible tone across registers; the 8A4 uses a semi-flat #4 rim and shallower entry for endurance.
04Will this work on a flugelhorn?
No. Flugelhorns need their own mouthpiece with a deeper cup and a different shank taper. A cornet piece won't seat correctly.
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
- site51275776904038
- 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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