Klier Mouthpiece for Valve Trombone and Bass Trumpet Exclusive VP 6D-1 Harald Kobler

Harald Kobler's Signature Mouthpiece for Valve Trombone and Bass Trumpet!
  • Silver-plated JK mouthpiece from the Exclusive series
  • Bore size: 6.2 mm
  • Rim diameter: 38.25 mm
  • Cup diameter: 25.75 mm, cup shape: medium shallow
  • Standard shank: 10.8 mm
  • Rim contour 6-1 on all H. Kobler Signature mouthpieces for easier switching between instruments or mouthpieces
Variants (3)
Klier Baritone Mouthpiece Exclusive BA 6DB-1 Harald Kobler
Klier Tenor Horn Mouthpiece Exclusive TH 6DB-1 Harald Kobler
Klier Trombone Mouthpiece Exclusive P 6DL-1 Harald Kobler
Klier Baritone Mouthpiece Exclusive BA 6DB-1 Harald Kobler
Klier Baritone Mouthpiece Exclusive BA 6DB-1 Harald Kobler
  • Silver-plated JK mouthpiece from the Exclusive series
  • Bore size: 6.0 mm
  • Rim diameter: 38.40 mm
  • Cup diameter: 25.90 mm, cup shape: medium deep
  • B-shank: 11.5 mm
  • Rim contour 6-1 on all H. Kobler signature mouthpieces for easier switching between instruments or mouthpieces
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Klier Tenor Horn Mouthpiece Exclusive TH 6DB-1 Harald Kobler
Klier Tenor Horn Mouthpiece Exclusive TH 6DB-1 Harald Kobler
  • Silver-plated JK mouthpiece from the Exclusive series
  • Bore size: 6.0 mm
  • Rim diameter: 38.25 mm
  • Cup diameter: 25.75 mm, cup shape: medium shallow
  • B-shank: 11.5 mm
  • Rim contour 6-1 on all H. Kobler signature mouthpieces for easier switching between instruments or mouthpieces
109
Klier Trombone Mouthpiece Exclusive P 6DL-1 Harald Kobler
  • Silver-plated JK mouthpiece from the Exclusive series
  • Bore size: 7.1 mm
  • Rim diameter: 38.40 mm
  • Cup diameter: 25.90 mm, Cup shape: Medium shallow
  • L-shank: 12.5 mm
  • Rim contour 6-1 on all H. Kobler Signature mouthpieces for easier switching between instruments or mouthpieces
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109
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Shipping on 26.05.2026
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Delivery on Wednesday, 27.05.2026, if you order within 1 Days 11 Hrs. 57 Min. 
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Klier Exklusive Custom

Josef Klier Signature Mouthpiece H. Kobler for Baritone!

JK Exclusive mouthpieces stand out with large tonal volume, pure tuning, easy response, and precisely calculated resistance in cup design and backbore, ensuring good endurance for the player.

The personal sound ideas and wishes of a professional musician like Harald Kobler can only be fulfilled with the greatest possible technical precision. That’s why Klier in Diespeck, Middle Franconia, uses computer-controlled CNC lathes to manufacture their JK mouthpieces. Only this production method allows the necessary series accuracy with tolerances in the micrometer range (thousandths of a millimeter) thanks to its high positioning precision.

Unique in the Mouthpiece Sector

The consistent embouchure and cup diameter of each series, as well as the exact and differentiated gradation, enable the musician to achieve any desired style without having to adjust their embouchure. A mouthpiece series with such precise and optimal craftsmanship cannot be found in any other mouthpiece offering.

The Conclusion of Professional Musician Harald Kobler

"In search of a mouthpiece manufacturer that combines quality, innovation, and humanity, I found Klier. Together, we developed a Harald Kobler Signature mouthpiece series for trombone, tenor horn, baritone, and valve trombone / bass trumpet. All mouthpieces have the rim contour 6-1, which greatly facilitates switching between different instruments or mouthpieces.

With the VP 6D-1 H. Kobler mouthpiece, we succeeded in developing an ideal mouthpiece for valve trombone and especially for bass trumpet. The direct response makes playing in all registers easier for me—especially in the high range.

The slightly enlarged bore produces a warm and full sound, which is especially sought after in traditional folk music. Additionally, this mouthpiece supports the bass function in folk music."

Harald Kobler

About Harald Kobler

Harald Kobler studied at the Tyrolean State Conservatory in Innsbruck with Mato Santek and at the University of Music and Performing Arts Munich with Prof. Michael Stern. He then held substitute positions with the Philharmonic Orchestra of the City of Augsburg and the two orchestras of the Bavarian Broadcasting Corporation.

Since 2007, Harald Kobler has been tenor horn player and trombonist with "Die Innsbrucker Böhmische - das Original." He is also a member of the Inntaler formation "Der harte Kern" from Angerberg, the "Angerberger Bläser," and a soloist with the "Brassband Fröschl Hall."

Through his many years of involvement with the well-known formation "Franz Posch und seine Innbrügger," Kobler significantly contributed to the musical development of this group in Tyrol and beyond.

Kobler toured with the Bavarian State Opera through Belgium and is frequently booked as a guest musician by renowned ensembles and formations such as the Bundeswehr Music Corps in Siegburg or "Ernst Hutter & Die Egerländer Musikanten - Das Original." Harald Kobler is a sought-after lecturer at brass seminars, where he focuses especially on embouchure and breathing techniques.

Mouthpieces by Josef Klier - A Sound Beginning!

Features

  • Josef Klier Mouthpiece for Valve Trombone and Bass Trumpet
  • JK Exclusive Custom Signature Series
  • Signature Model Exclusive VP 6D-1 Harald Kobler
  • Bore size: 6.2 mm
  • Rim diameter: 38.25 mm
  • Cup diameter: 25.75 mm
  • Cup shape: Medium shallow
  • Standard shank: 10.8 mm
  • Silver-plated
  • Made in Germany

Scope of delivery

  • 1 x Klier Mouthpiece for Valve Trombone and Bass Trumpet Exclusive VP 6D-1 Harald Kobler

Specification

  • Product number 00110194
  • Instrument Basstrompete, Posaune
  • Shaft Trombone Standard (10.8 mm)
  • Cup diameter 25,90
  • Cup depth Medium flat
  • Colour Silver

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