I have tungsten under every thing speaker and switsch and also router
and i have 7 groundboxes Tenten 2 olympis mini tungsten 2 olympis ten tungsten
Olympis tellus an olympis mini
I have Tried Hdmi cable for my esoteric mono dac
timeportal best and audioquest and qsa purple red
timeportal is good but to much bas .
With qsa everything was in harmony more details and perfeca bas
soi recomendet qsa Hdmi if you use Hdmi in your hifi