How good does my system have to be to realize an improvement with cables?

@tablejockey +1 to that.  Where were you when I started this thing?  For every minor change I have hours and hours of research. The good part is that I can listen while I study.

Thanks everyone for the input.  My biggest issue is I don't know what I don't know.  I'm budget cable all the way and it still sounds good to me, so considering buying a cables that cost more than half  of what I spent on my amp causes me pause.

I like the concept of the used the route but counterfeit looms as they are selling for more than the ones from China with the same look.

There are sooo many choices and feedback from all of you and the logic of how you made your decision is of great value to me. 

Cheers

@ebm 

I appreciate that but at what point does a system become classified as "high resolution"?  If I think my system is only a "mid resolution" system will simply adding cables bump it up a notch to "entry-hi"?

What are the criteria I can use to classify where my system is on the spectrum and that cables are the component holding me back?

I have found speaker cables make the largest difference and went with Nordhost Heimdall 2.  Upgrading power cords or USB cables yielded no improvement to my ears.  YMMV

Thank you for the response.  What a wonderfully frustrating hobby, right?  My issue would be if I didn't hear a difference did I just try the wrong cable or can my components just overcome the deficiencies in my chosen cables or is something else holding me back from realizing the improvements?

My only conclusion is there is not a right answer to any stereo question.  Like trying to get your arms around water.