The first thing you should know is freebie rubber power cords are supplied for one reason and one reason alone, and that is so some day when you go to sell and you have all the original packaging you can say to the buyer buy with confidence I have all the original packaging including the freebie rubber power cord. The buyer knows there is no earthly reason to hold onto one of those things, therefore you are OCD and therefore reliable and you get more money. Ideally the freebie rubber power cord is kept wrapped tight in its plastic bag as that is the one thing they are designed to do really well. In a pinch they can be used to warm up and burn in but under no circumstances should you use them to listen to music as this alone will give the impression you threw away a mountain of money on a piece of crap when really it is just the POC power cord making your (possibly) good component sound like a POC.
This has nothing to do with demands on house current, or current demands at all. Better power cords sound better even on a phono stage or (shudder!) DAC where power demands are virtually nonexistent.
The "weak link" philosophy is complicated. If you think of it in terms of the weakest link will prevent hearing what everything else is doing this is bunk. Everything I said about the freebie rubber power cord was just to get the point across how awful they are. You will still hear improvements made elsewhere even with the POC cord in there. So in this sense the weak link does not apply.
Where the weak link concept does work is when looking to upgrade it makes sense to spend your money where it will do the most good. Since a rubber power cord is ground zero it costs next to nothing to upgrade. Anything will be better! Everything will be better!
Go and listen. Read the reviews. You will see.
This has nothing to do with demands on house current, or current demands at all. Better power cords sound better even on a phono stage or (shudder!) DAC where power demands are virtually nonexistent.
The "weak link" philosophy is complicated. If you think of it in terms of the weakest link will prevent hearing what everything else is doing this is bunk. Everything I said about the freebie rubber power cord was just to get the point across how awful they are. You will still hear improvements made elsewhere even with the POC cord in there. So in this sense the weak link does not apply.
Where the weak link concept does work is when looking to upgrade it makes sense to spend your money where it will do the most good. Since a rubber power cord is ground zero it costs next to nothing to upgrade. Anything will be better! Everything will be better!
Go and listen. Read the reviews. You will see.