Which power cord more important?

Thank you all for your replies, when I finally get around and buy one, I'll be very curious to hear the results...so far I'm a bit of a sceptic but would love to be proven wrong :-) ...

I've found once both ends of the chain are accessorized properly, the middle can stand some looking at too.

My exp does say either and both ends. Which ever is first is first. So what? Pick one and go for it!

Out of pure coincidence I put some onto the amps I had at the time. Then my source got one added to it. Then I added a passive power filter. Then a power cord for the filter.

Then I changed things and did it all over agin, but differently.

Where ever is just fine. Amp first? Fine. Do that.

Eventually, all the ingredients are in the pot, right?

The supply cord to the filter is as key as anything else though. It's 'flavor' will be introduced into anything downstream of it. So in effect, the effect on the amp and it's sound is the combination of it's directly connected power cable, the filter or device to which it is connected, AND the supply cable feeding that filter.

Cook for 200 hours minimum if new, 100 if used, season to taste with software .... feeds reserved seating, and standing room only, as a rule.

i noticed very little when i upgraded my first PC. it was only after upgrading all 4 that the "wow moment" arrived.

connected the first one (PS Audio AC-10)from the 20a dedicated line too my quintet. i noticed a bit of bass extension but that was about it. got another PSA AC-10 for my integrated amp then 2 PSA AC-5's for my transport/dac.

things really came together after that.

i would guess the line from your outlet should be first but in the end....you should go all in and upgrade them all.

All power cords sound different....and different used with different components. My amp likes Accrolink with
Furutech plugs, and my preamp from the same manufacturer likes Accrolink with Oyeida plugs. If I switch the power cords around, the sound isn't as good. You must try your power cord on the component you wish to use it on and listen to tell if it is right for your system.

Further notes

By & large, my exp shows me the higher up the cable feeding chart I went ($$$-wise) the greater the noticed influence on my gear.

The beeter the gear, the more easily noticed the changes were.

When I've sought to supplant one or more cords ie., mono blocks, other pc's sometimes need to be changed as well... or the ICs themselves.

I got pointed towards Voodoo cables for a look see into power cables early on. That proved a good move IMO. Various levels there provided me quite different results and that exp laid the foundation for my speculations on higher priced cables affording certainly different, and often, better performance.

i stoppped at the Voodoo gold Dragons for amps. Bruce's Tesla II is different and questionably better. The Golds are simply best for amps, but can be placed about anywhere.

The Shunyata Python (red) is demonstrably better than the Golds, but tends to be a bit grainier. The VX version is my preff of the two, and ONLY for wayward didgital or spinning devices. The helix ver of the same cord was entirely different, being more refined, no grain, yet threw the SS way back from the LP. Loads of rear of stage info. Although the Helix was a tad more delicate sounding than the previous Red tipped ver, it possessed the same ipactful bass, and upper end extension. no matter where it was placed, yet proved beter on higher current drawing gear... eg., amps.

The Elrod Sig III simply put is an amp cable. Tube or SS, amps are it's 'Soup du Jour'. It does little wrong if anything. Arguably the lower end impact seems attenuated at first listen, and well maybe, yet following some ear adjusting, it seems more natural. I think some may call that 'tightening the bass'.

Likewise at the other end of the scale, I've found Audience, mid level to entry level PSA, Kimber (below the PK10 Pladium) to not show themselves as major players by contrast. In other words, they simply were different sounding... not truly improving upon or raising the bar of the sonic recreation.... albeit, better than OEM cables at least.

Every move or addition builds upon the last change in the system... and why I say Get in where you fit in... things will ultimately come together for you, regardless where you begin.

Different is a lot easier to find in cabling, than is truly better.

Good luck.