Hi all, sorry for the lack of updates, i didn't really had much time to work on tthe speakers sadly, but...

I fixed the too much high tones by using a 2ohm 10watt resistor on the high end.

In fact, i compared the speakers intensely to my Klipsch RF-52 (letting others listen too), and the conclusion is: much more detail in the sound.
Eespecially in the mid-high end, without a overload of bass (which the Klipsch RF-52 have for sure)

I am using them with my Marantz SR7010 receiver as the main 'left/right' speakers.

only addition is that i have my 1 meter deep subwoofer (which kicks in at 60HZ to 10HZ) for a better movie experience.