Detail 01
Size 5 diameter
Medium-wide rim. Wider than the common student sizes, so more lip vibrates and the sound fills out.
Product detailSKU #1274115060076
BachCornet Mouthpiece Group I 5B
1/8
Independent shopping perspective
The Korena take
A Bach cornet mouthpiece in a medium-wide, deeper cup. For cornet players wanting the round, dark tone that separates cornet from trumpet.
Strong match
Who this is for
- Brass band cornet players wanting a darker, rounder sound
- Trumpet doublers who need a proper cornet piece, not an adapter
- Players finding stock cornet mouthpieces thin in the low register
Consider the trade-offs
When to look elsewhere
- Trumpet players — the shank won't seat in a trumpet receiver
- Beginners still on a stock 7C-equivalent cornet piece
- Players needing bright cut for lead work
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
B cup
Deeper than Bach's medium C cup. Darker, rounder tone and stronger low register; slightly less edge up high.
Detail 03
Group I shank
Bach splits cornet mouthpieces by shank taper. Group I only fits cornets built for that receiver size.
Detail 04
Cornet, not trumpet
Shorter and different taper than a trumpet piece. It won't work in a trumpet even if it starts to go in.
Detail 05
Standard Series
Regular Bach production, not hand-cut. Consistent enough that a replacement plays like the original.
Final check
Know before you order
- 01Check your cornet's receiver group before ordering — the wrong shank won't seat
- 02Mouthpiece only; no pouch, case, or brush
- 03Deeper cup takes more air; expect an adjustment period
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What does Group I mean on a Bach cornet mouthpiece?
It identifies the shank taper. Bach divides cornet mouthpieces into shank groups, and Group I fits cornets built for that receiver. Check your instrument before ordering.
02Can I use this in a trumpet?
No. Cornet shanks are shorter and tapered differently. Even if it partially enters a trumpet receiver, it won't seat properly or play in tune.
03How is a 5B different from a 5C?
Same rim diameter, deeper cup. The B gives a darker, rounder tone with a fuller low register and slightly less brightness on top.
04Is this a step up from a stock mouthpiece?
Yes for players ready for a wider rim and deeper cup. If your tone is still developing, the extra air demand can work against you.
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
- site51274115060076
- 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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