First, you don't need lines for power and source. Not only is this a waste of time and money, you run the risk of introducing ground loop hum and/or DC offset causing transformer noise. Whole system on one circuit, another circuit for lights and miscellaneous outlets, all you need. Been there. Done that.
As for objective, absolutely the wrong word. Like asking if there is an objective way to choose wine. You pour, look, swirl, sip. Done. If the next guy doesn't like your pick, guess what? That's HIS problem.
Besides, its not like its all that hard to hear these diffferences. What you do, get yourself a Synergistic Research Master Coupler, basically the gold standard of power cords for like 30 years now. Just get one. Used they're around $250 or so. Totally worth the money. Then compare whatever else the other guys around here throw at you. Should not be hard at all to discover they don't even come close.
Then do the same with the rest. Find whatever Synergistic interconnect and speaker cable you feel comfortable spending whatever amount of money on. Does not matter. I have not since 1991 ever heard anything else perform as well across the board, and doubt I ever will. So you get one, then feel free to compare away. Won't be long before you will be thinking what's the point? Just get the newest/best SR you can afford and relax and enjoy the music.... until you start wanting the next one....
As for objective, absolutely the wrong word. Like asking if there is an objective way to choose wine. You pour, look, swirl, sip. Done. If the next guy doesn't like your pick, guess what? That's HIS problem.
Besides, its not like its all that hard to hear these diffferences. What you do, get yourself a Synergistic Research Master Coupler, basically the gold standard of power cords for like 30 years now. Just get one. Used they're around $250 or so. Totally worth the money. Then compare whatever else the other guys around here throw at you. Should not be hard at all to discover they don't even come close.
Then do the same with the rest. Find whatever Synergistic interconnect and speaker cable you feel comfortable spending whatever amount of money on. Does not matter. I have not since 1991 ever heard anything else perform as well across the board, and doubt I ever will. So you get one, then feel free to compare away. Won't be long before you will be thinking what's the point? Just get the newest/best SR you can afford and relax and enjoy the music.... until you start wanting the next one....