Description
The Gleichweit B13 Bb clarinet mouthpiece is the most open mouthpiece in the Gleichweit Bb clarinet range – a specialist model for soloists and contemporary players who demand maximum expressive freedom, a powerful, full-bodied tone, and the widest possible dynamic range.
Machined from your choice of high-grade synthetic material or hard rubber on advanced CNC equipment, the B13 features a 1.40 mm tip opening and a long 28 mm facing. It is the pinnacle of openness in the Gleichweit range and requires a highly developed embouchure to realise its full potential.
The built-in O-ring system ensures a secure, airtight fit while protecting the instrument tenon.
The B13 produces a commanding, full sound with remarkable depth and presence. It is the choice of clarinetists performing demanding contemporary repertoire, or those who simply want the maximum expressive scope available.
Every version of the B13 shares the same facing and tip opening – only the material, the tenon fitting and the tuning pitch differ. Select your version in the Bore menu above.
| Version | Material | Tenon | Price |
|---|---|---|---|
| BW – Boehm440–441 Hz | Synthetic7 colours | O-ring | $245 |
| BE – Premium Hard Rubber440–441 Hz | Premium hard rubber (ebonite)Black only | O-ring | $350 |
| B – Boehm441–442 Hz | Synthetic7 colours | O-ring | $245 |
BE Premium version: stock of the BE model is limited, so we cannot send it out for testing and it is not part of our test-before-buying program. Buy the one you would like to try, play it at home, and return it within 3 days of delivery if it is not the right fit.
| Facing length | 28 mm |
| Tip opening | 1.40 mm |
| Clarinet type | Bb clarinet |
| Reed style | French facing |
- ✓Maximum expressive freedom
- ✓Commanding, full-bodied tone
- ✓Exceptional dynamic range
- ✓High projection and presence
- ✓For advanced soloists and contemporary specialists
The B13 requires very soft reeds to respond correctly. Légère European Cut in strength 2 and Vandoren Rue Lepic are the top recommendations.
Légère French Cut
Vandoren Rue Lepic
D’Addario Reserve Classic
Pilgerstorfer
Vandoren V12





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