Ogri,

You could check Shunyata's website. Not just marketing hype; they've done some useful research that points to the "whys" of power conditioning.

But, I haven't tried their products; my 8000s/818 are fed straight from the wall.

Roon, Technics SL10 turntable, Meridian 218, Jolida tube DAC, Nuforce STA 200 Amp and passive Swallow Acoustics ALS2 speakers