Ok, I probably need to clarify my initial question.
This is based on the fact that most speaker companies use very basic wiring inside the cabinet. While upgrade is not that substantial in terms of the result, the subtle changes are very noticable. I have experience upgrading Zingali monitors results were very good - transparency, musicality, air, breath etc, however must say the signature of the sound changed from original one.
I am assuming the same could be done with H3, I am really amazed to find such reaction to that idea, while H2 are upgraded a lot.
DDo I miss something?