Detail 01
147 tip opening
1.47mm between reed tip and rail — very open. Big volume and easy bending, but it takes more air and tires you faster.
Product detailSKU #1274228081584
Vandoren5JB Jazz Bb Clarinet Mouthpiece Traditional
Independent shopping perspective
The Korena take
Very open hard rubber clarinet mouthpiece built for jazz volume and pitch bending. Not a classical setup and not a first mouthpiece.
Strong match
Who this is for
- Playing over a big band or amplified group
- Bending notes, growling, and pushing altissimo
- Players whose current setup chokes when they push volume
Consider the trade-offs
When to look elsewhere
- Orchestral or concert band playing — too open and bright
- Beginners; the tip opening makes early control difficult
- Anyone committed to hard reeds
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
Long facing
The reed leaves the rail further back, so more of it vibrates. Freer blow, and low notes speak without pinching.
Detail 03
Hard rubber
Machines to tight tolerances and feels warmer in the mouth than plastic, but heat and sunlight discolor it over time.
Detail 04
Ligature not included
You supply your own. Fit varies with the blank, so confirm yours clamps flat before you rely on it.
Final check
Know before you order
- 01No ligature and no reeds — budget for both
- 02Expect to drop reed strength; stiff reeds choke an open tip
- 03Give it a few weeks — control on open tips builds slowly
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What reed strength should I use with a 5JB?
Softer than a close-tip mouthpiece needs. A 1.47mm tip requires a reed that can actually move, so most players step down at least one strength and test from there.
02Can I use this for classical playing?
It's built the other way. The open tip and long facing maximize volume and flexibility, which works against the control and blend orchestral playing asks for.
03Does it come with a ligature and cap?
No ligature is included. Plan on buying one that fits the blank, plus reeds, before your first rehearsal.
04Is hard rubber better than a plastic mouthpiece?
It holds tighter machining tolerances and feels warmer against the lip. The tradeoff is care — keep it out of hot cars and direct sun, since both discolor it.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Material
- Hard Rubber
3 detailsOther
- Ligature
- Not Included
- Facing
- Long
- Tip
- 147
