[Wijnand]

When the sound became dark (DAC crystal out of phase). I think it would make sense when I would give some examples.

Adding a new linear powersupply will solve the problem for 4 days (until some level of break in is reached) . I have tried this at least 8 times 🙂

Replacing a high grade powersupply by a less good powersupply. This prevents the crystals from synchronising, so the dark sound is solved, but it’s not the same as with the better powersupply.

Replacing the ethernet cable will solve the problem for 2 hours. I have tried this more than 10 times.

Adding CAT8 makes things worse. Adding noise by adding for example a switching powersupply somewhere in the network makes things better.

Adding antennas to the ground system solves the dark sound, but on other levels is less good.

Disconnecting the audio system for 8 hours, solves dark sound for 4 hours.

Using less good power cables will solve the Dark sound (to some amount).

Using a new power cable no matter where in the system will solve the problem for 48 hours (probably a certain level of break in) I have tried this at least 20 times.

Adding powernetfilters like Kemp SNS or Furutech NCF clearline will cause dark sound

I think I can give more than 50 other examples that suits my explanation 🙂