Description
The Gleichweit B5-1 Bb clarinet mouthpiece is the tightest mouthpiece in the Gleichweit range – engineered for clarinetists who demand maximum precision, a centred focused tone, and pinpoint intonation control.
Precision-crafted on advanced CNC machinery from your choice of high-grade synthetic material or hard rubber, the B5-1 delivers unrivalled consistency. Its very closed tip opening produces a compact, tight sound that excels in chamber and orchestral settings where blend and clarity are paramount.
The built-in O-ring system ensures a secure, airtight fit while protecting the instrument tenon.
The B5-1 rewards a refined embouchure with laser-accurate intonation and crisp articulation across all registers, from the lowest chalumeau notes to the highest altissimo.
Every version of the B5-1 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 | 21 mm |
| Tip opening | 1.04 mm |
| Clarinet type | Bb clarinet |
| Reed style | French facing |
- ✓Maximum precision and tonal focus
- ✓Crisp, clean articulation
- ✓Excellent intonation stability
- ✓Compact, centred tone
- ✓Ideal for chamber and orchestral playing
The B5-1 pairs best with slightly harder reeds that match its very closed opening, delivering the control and stability this model is built for.
Vandoren Traditional
Légère European Cut
Légère French Cut
D’Addario Reserve Classic
Pilgerstorfer
Leuthner







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