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Josef Klier - Top Quality from a Master Craftsman!
The family business originated in Graslitz in the Sudetenland, the city regarded as the cradle of musical instrument making. This is where the entire industry began. As early as 1669, 12 violin makers worked in Graslitz. By the outbreak of World War II, 300 companies employed a total of 3000 trained instrument makers.
JK Mouthpiece "USA Line"
The special feature of the JK USA mouthpiece line is the unique cup shape. They are based on patterns from the army bands who brought them from Mount Vernon, New York. Josef Klier discovered these mouthpieces after World War II and immediately fell in love: the USA Line was born. Roland Klier then crafted faithful copies, which were enthusiastically embraced by the army musicians.
The personal sound preferences and wishes of the player can only be fulfilled with the greatest possible technical precision. That’s why Klier uses computer-controlled CNC lathes to manufacture their JK mouthpieces. Only this production method, with its high positioning accuracy, allows the necessary series precision with tolerances in the micrometer range (thousandths of a millimeter).

Good to Know:
- Backbore A1: small, tight backbore
- Backbore A2: medium backbore (standard)
- Backbore A3: larger, wide backbore
For passionate brass players with a love for their instrument!
Features
- JK USA-Line
- Bore: 3.6 mm
- Rim Diameter: 27.3 mm
- Cup Diameter: 16.6 mm
- Backbore: A2
- Standard Trumpet Shank
- Silver-Plated
Scope of delivery
- 1 x Klier Trumpet Mouthpiece "USA Line" 3C
Suitable accessories (Not included in the delivery.)
Specification
- Product number 00060631
- Cup depth Medium flat
- Instrument Trumpet
- Shaft Trumpet
- Cup diameter 16,60
- Colour Silver
Reviews
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| 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 |
