Electro-Harmonix vacuum tubes are a brand made as high-quality vacuum tubes by the American company New Sensor (NS). Compared to other current tubes in the same price range, they are crafted more carefully, and the high quality is also felt from the printed logo. The sound tendency has a sense of protrusion in the midrange.
NS company produces not only Electro-Harmonix vacuum tubes but also brands such as SOVTEK, TUNG-SOL, and GOLD LION, and vacuum tubes from these brands are manufactured at the Reflektor factory in Salavat, Russia.
Electro-Harmonix vacuum tubes available for purchase here are subjected to sufficient aging using an automatic sorting machine in Japan, then their characteristics are measured with high precision, and a 13-digit serial number is assigned (the serial number is affixed to the box). After measurement, they are matched and shipped. The error in pairs measured at NS company often deviates by about several tens of percent even under the same measurement conditions. However, with this high-precision sorting, the pair error is kept within 5% (within 10% for preamp tubes, depending on measurement conditions).
Anything outside the electrical characteristics of the product (damage to other equipment, tilt of the valve, height differences of the valves, missing logos, etc.) is not covered by the warranty.
| Product # | 4582296962935 |
|---|---|
| Specifications |
種類 : プリ管<br>管種 |
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