DescriptionFrom EHX:WORLDWIDE LEADER IN TUBESThe EHX family of tube brands includes: Tung-Sol, Electro-Harmonix, EH Gold, Genalex Gold Lion, Mullard, Svetlana & Sovtek.Our tubes have always been known for their reliability and great tone due to our strong committment to quality engineering and manufacturing. For a tube to be labeled with our brand, it must endure and pass the toughest testing in the industry.Electro-Harmonix vacuum tubes are the leading choice for many legendary amplifier manufacturers and if you want great sounding tubes at an affordable price, then EHX tubes should be on the top of your list.Large sound stage with excellent detailFactory selected for low noise and lowest microphonicsECC83/7025 equivalent