List of products by brand JK

JK mouthpieces: German precision, consistent measurements, and balanced response for brass instruments.

JK (Josef Klier) manufacturer of mouthpieces for brass wind instruments: trumpet, flugelhorn, horn, trombone, euphonium, and tuba. With German engineering and rigorous quality controls, their cups and backbores are designed to optimize emission, sound focus, and tuning, while maintaining comfort during long sessions. The variety of sizes and series allows for adjusting response, projection, and tonal color at every level, from students to professionals.

At A Un Tono, we advise you on choosing the JK mouthpiece that best fits your instrument and style: opening, cup depth, rim, and throat. Compare options for symphonic music, band, jazz, or modern music, and find the ideal balance between flexibility, articulation, and power. Stable quality, consistent manufacturing, and reliable results: that's how JK mouthpieces sound.