Detail 01
The 3 in 3D
A wide rim diameter. More lip inside the cup means bigger sound and more endurance demand than a 5 or 7.
Product detailSKU #1316705827054
BachStandard Series Cornet Mouthpiece in Gold Group I 3D
Independent shopping perspective
The Korena take
A gold-plated Bach cornet mouthpiece in the 3D size. For cornet players who want a wide rim with a shallower cup for easier upper register.
Strong match
Who this is for
- Cornet players wanting more high-register comfort without dropping rim size
- Brass players with nickel or silver plating sensitivity
- Lead and brass-band work sitting in the upper staff
Consider the trade-offs
When to look elsewhere
- Trumpet players — the shank is cut for cornet receivers
- Players chasing dark, broad orchestral tone from a deep cup
- Beginners still building embouchure on a standard 7C
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
The D cup
Shallower than the common C cup. Brighter, more focused, less resistance in the upper register, less depth down low.
Detail 03
Gold plating
Feels slightly warmer and slicker on the lip than silver. Contains no nickel, so it suits players with plating reactions.
Detail 04
Standard Series
Bach's production line rather than a custom or artist cut. Rim, cup and backbore follow the catalog spec.
Detail 05
Group I designation
Refers to the shank taper. It has to match your cornet's receiver or the mouthpiece will sit too deep or too shallow.
Final check
Know before you order
- 01Confirm your cornet takes a Group I shank before ordering
- 02No pouch or case is included
- 03Gold plating is softer than silver and wears through at rim contact points over years
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit my trumpet?
No. Cornet receivers use a different shank taper than trumpets. A cornet mouthpiece will not seat correctly in a trumpet leadpipe.
02How is a 3D different from a 3C?
Same rim diameter, shallower cup. The D gives a brighter, more focused sound and less resistance high up, with less low-register body.
03Why does gold plating cost more than silver?
Gold is the more expensive plating material. It also avoids nickel underneath contacting the lip, which matters for players with skin reactions.
04Is this a step up from a stock mouthpiece?
It is a specific size choice, not a universal upgrade. The 3D suits wide-rim players working the upper register; others may play worse on it.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Gold
