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KR Audio Vacuum Tubes

World Manufacturer of Vacuum Tubes and Hi-fi Audio Equipment


Located in the heart of Europe in Czech Republic.

KR is the world leader in the production of low-frequency power triodes and hi-end audio equipment.

All products are hand-crafted, starting from the selection of the glass. The high vacuum machines and the choice of the artisan work in both metal, glass blowing and design, chemical and electrical designs plus the absolute refusal to use an automatic line to make tubes is THE reason for KR's unique high quality.

14 products

What clients are saying

  • Like Santa Claus...

    Verdant Audio is, by far, the best dealer of audio equipment I have ever dealt with and I am on the West Coast while Verdant is on the East Coast. Scott, the owner, is like the Santa Claus in the movie "Miracle on 34th St.": He makes recommendations about what audio equipment best suits your tastes whether he carries those lines or not. He gives you an opportunity to try products he has in stock. And he works with you, after the sale to make sure your happy even if it means returning a purchase. Who else does all the things?

  • I've had the great pleasure..

    ... of dealing with Scott Bierfeldt at Verdant Audio on a number of recent transactions. I’ve been a serious high-end audio enthusiast for decades and Scott is hands down the best audio dealer with whom I’ve worked. Scott’s audio knowledge is truly impressive. His style is entirely consultive with no sales pressure at all. Working with Scott is like taking audio advice from a good friend that is guiding me to the best choices. In addition, Verdant Audio has an exceptional selection of very fine audio gear. Scott and Verdant are highly recommended.ontent