Hi...

Going back to my original question, the LAN isolator from Acoustic Revive, I bought them and tried for 2 weeks, and my findings are...

1. There is subtle sound difference.
2. It feels like sound is filtered, (roll-off range is more narrow)
3. Meaning highs are bit rolled off and base attack is reduced.
4. But it also means that highs are bit smoother, and base is bit tight.

Conclusion.
If you have boomy base and too bright sound, try LAN isolator.

Hope this helps~

DSP: DSP6000.2 MKII, Reviver,
Audio: MS200, Super Linear Power Supply 12V1A, SotM ISO-Cat6
Core+Store: ROON on ROCK