Silenced Modern high-quality lamp with a relatively high gain, rich sound throughout the range. Lamp good shows itself as pure sound, and on congested.
Moderately dense low frequencies, middle, warm and well-articulated top. In general, much more expressive and musical sound in comparison with Russian 12AX7 varieties produced by the defense plants. In addition, unlike the old production lamps (branded the Tesla) on a par with the increase in the gain lamps engineers were able to minimize the so-called microphonic (grid ringing from vibrations on the body) than can not yet boast of Chinese manufacturers.