I played with this dilema just last week and had a sceptical but interested friend sitin . My old setup was a Tice AV solo conditioner with hardwired factory cord in standard wall outlet runing an integrated tube amp; transport and a Dac all with manufacturer standard cords. The 3 new variables were 3 new seperate dedicated lines; one PC lab cable 2; one PC mini lab cable. Experiment 1:Old setup ie Tice into house outlet vs old setup with Tice into dedicated line. Dedicated line gave marked improvement, lowering of the noise floor, greater sound stage. Experiment 2: PC lab cable 2 and mini lab cable between integrated amp and Tice vs directly into dedicated line. The PC lab cable 2 into the dedicated line won out with greater sound stage yet, improved bass, less noise. When both of the power cords were tried on the tice the sound stage got smaller and some of the detail was lost, piano sounded too soft, not enough crispness. Experiment 3: PC mini lab cable from Dac to Tice vs dedicated line. Dedicated line won out with a better overall balance and a less veiled, natural sound. Now I am hearing a lot more detail with the noise reduction and there is no fatigue. Hope this helps a little.