Lak, Some moved to High fidelity.
I build custom power boxes with design help from a friend.
I barely go 3 months without upgrading some portion of the boxes I use.
Seems like there's alway a new box, wire, outlet, inlet, mounting plate or outlet cover. (Damping, shielding and adding weight also) Then it is a matter of finding which combination of parts gives the best sound.( ie. NCF outlet needs a different inlet than R-0)
Parts alone for one box is $2500 and I use two boxes.
It's an interesting process, probably for another thread.
Also... I am getting another PRO IC today to experiment with.
Will report on that later