Electro-Harmonix Is the United States first NEWSENSOR group big brand, has a rich history and experience in manufacturing vacuum tubes, the best materials and the most demanding manufacturing processes, for audio enthusiasts and instrumentalist with the highest quality, most musical vacuum tubes. EH tubes for today&39;s dozens of audio manufacturers, much loved by many audiophiles, EH maybe you are using vacuum tubes, I&39;m sure you can appreciate the perfection of EH tube tone and reliable quality.
Electro-Harmonix tubes represent the finest audiophile and musical amplification tubes available today. Built to exacting specification, with an eye on the best aspects of vintage tubes, the highest quality materials and manufacturing tolerances are maintained. Electro-Harmonix also has the best tube matching equipment in the world. Their own designed machinery insures superior matching as well as the best balanced tonal response of any tubes on the market. Sweet, musical tubes for the professional.