The reissued Tung-Sol 12AX7, currently produced by Electro-Harmonix at the Reflector factory in Russia, maintains a high standard of quality. Its balanced triodes and low microphonics render it an excellent option for all pre-amp stages, including the V1 position. These tubes are highly recommended as the Ultimate 12AX7, offering a big, warm, and musical tone. They feature high gain, ultra-low microphonics, and superb linearity, resulting in a dynamic three-dimensional sound.