Klier Bass Trombone Mouthpiece USA Line 4G

Precisely Crafted, Silver-Plated Mouthpiece!
  • Bore: 7.0 mm
  • Rim Diameter: 39.5 mm
  • Cup Diameter: 26 mm
  • Shank: 12.5 mm
  • Silver-Plated
62
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Standard Shipping
free
Delivery time 1 - 2 working days
Priority Shipping
+ 0,99
Shipping on 20.05.2026
Express Shipping
+ 5,90
Delivery on Thursday, 21.05.2026, if you order within  46 Min. 
Shipping and Delivery

Josef Klier - Highest Quality Crafted by a Master!

What sets the JK-USA mouthpiece line apart is its distinctive cup shape. They trace back to patterns used by Army bands that brought them from Mount Vernon, New York. Josef Klier discovered these mouthpieces after World War II and fell in love instantly — the USA Line was born. Roland Klier then crafted faithful reproductions, which the Army musicians embraced enthusiastically...

The personal sound concepts and wishes of brass players can only be met with the highest degree of technical precision. That’s why Klier in Diespeck, Middle Franconia, uses computer-controlled CNC lathes to produce their JK mouthpieces. Only this manufacturing method, with its superior positioning accuracy, delivers the production precision required, with tolerances in the micrometer range (thousandths of a millimeter).

Mouthpieces by Josef Klier - A Sound Beginning!

Features

  • Josef Klier Bass Trombone Mouthpiece USA Line 4G
  • Type: 4G
  • USA Line
  • Bore: 7.0 mm
  • Rim Diameter: 39.5 mm
  • Cup Diameter: 26 mm
  • Shank: 12.5 mm
  • Silver-Plated
  • Made in Germany

Scope of delivery

  • 1 x Klier Bass Trombone Mouthpiece USA Line 4G

Specification

  • Product number 00100078
  • Cup depth Mittelflach
  • Instrument Bariton, Bassposaune, Euphonium, Posaune
  • Shaft Posaune Large (12,5 mm)
  • Cup diameter 26
  • Colour Silber

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