The TAD ECC81 / 12AT7-Cz is selected with regards to a tight balance of both triodes making it ideal for the use as balanced phase driver. In addition to the perfect symmetrical systems, the strong amplification characteristics of the TAD ECC81 / 12AT7-Cz support increased dynamics of the output stage when used as phase driver or phase inverter tube.
TAD Premium Selection
Q: When does a preamp tube become a Premium Selected tube?
A: All preamp tubes labelled Premium Selected have passed the following tests:
- Low Noise Test
- Microphonic Test
- Gain Test
- Sonic Test
- Shock Test
- Listening Test
- Balanced Output Test
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