The hotline is currently not manned. You can reach us again on Wednesday, 20.05.2026 at 09:30.
Josef Klier - Highest Quality From a Master's Hand!
JK Exclusive mouthpieces stand out for their large tonal volume, stable intonation, easy response, and precisely calculated resistance in cup contour and backbore, which ensures the player excellent endurance.
The player's personal sound preferences and wishes can only be met with the greatest possible technical precision. That is why Klier uses computer-controlled CNC lathes to produce their JK mouthpieces. Only this type of manufacturing method, with its high positioning accuracy, achieves the necessary series precision with tolerances in the micron range (thousandths of a millimeter).
Unique in the Mouthpiece Sector
The consistent rim and cup diameters within each series, along with the exact and finely differentiated gradation, allow the musician to achieve any desired style without having to change their embouchure. No other mouthpiece range matches this level of precision and optimal workmanship.
Mouthpieces by Josef Klier - A Sound Beginning!
Features
- JK Exclusive Series
- Bore: 5.8 mm
- Rim Diameter: 40.0 mm
- Cup Diameter: 26.0 mm
- Cup Shape: very shallow
- Backbore: A2
- Shank Size: 10.8 mm
- Silver-Plated
Scope of delivery
- 1 x Klier Trombone Mouthpiece Exclusive 5F
Specification
- Product number 00037239
- Shaft Trombone Standard (10.8 mm)
- Cup depth Flat
- Colour Silver
- Instrument Bariton, Euphonium, Posaune
- Cup diameter 26,0
Reviews
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This product is also available in the following condition:
| 3 Year warranty | |
| 30 Day Money Back | |
| Price Match Guarantee | |
| Over 2.000.000 satisfied customers |
The hotline is currently not manned. You can reach us again on Wednesday, 20.05.2026 at 09:30.
| Wednesday | 09:30 - 18:00 | |
| Thursday | 09:30 - 18:00 | |
| Friday | 09:30 - 18:00 | |
| Saturday | 09:30 - 13:30 | |
| Monday | Closed |
Different opening times |
| Tuesday | 09:30 - 18:00 |