The 12AX7LPS Sovtek is the closest to the large plate European construction. This Russian 12AX7 works well in a traditional circuit. The Chinese tube is a short plate construction which is very low in microphonics. If you've had problems with microphonics this is the tube to try. Our Low Noise tubes are a superior tube especially tested for today’s quality line stages. Only 30% of the tubes we test perform well enough to be considered Low Noise. |