Which tubes are suitable for Jadis as replacements or as a sonic upgrade?

With Jadis, a targeted tube selection is often more worthwhile than a simple replacement. This applies especially to popular units such as DA50S, DA88S, Orchestra Reference, JA80 MkII and JA120. Depending on the model, KT90, KT88, 6550, KT120, EL34 / 6CA7 as well as ECC82 and ECC83 are particularly interesting. According to Jadis, the DA88S can be operated with KT88, KT90, KT120 or 6550, the Orchestra Reference uses EL34 and ECC83, and for JA80 MkII and JA120, Jadis also lists several compatible power tubes plus ECC82 / ECC83 in the driver stages.