Which power cord should you buy first

I could have as easily given the answer @garebear has, depends on my mood on any given day. 

But agreed, right at the top of this page, see the "search discussions" bar? search first, then search other forums- that is what I do instead of starting new discussions. 

Some say that there is a benefit to keeping the cables consistent throughout the signal chain.  Same cable for DAC, same for power amp etc.

To start I will do power conditioner then amp, preamp, then source.

Same cable for pre amp and amps.

Same cable for DAC and Innuos and phono pre. 

Your DAC.