Need recommendations for inexpensive power cord


I’ve never used after market power cords and am considering buying a couple.  I have some questions:

Considering the astronomical price power cords go for, is there any point getting one or two in a lower price range?
At what price point do power cords start to make a difference in your system?
I have two monoblock NuForce class D 160 watt amps.  Is this where they should go? 
Can someone recommend an inexpensive power cord that can make a difference?

 
128x128rvpiano
@rvpiano, good move on the Isotek power conditioner with the Elite power cord. All I'm suggesting is that if you should ever want to upgrade the power cord or cords to your Dac, Transport or Oppo I believe you will hear an additional improvement in your music.
The Gungnir is definitely superior to the Oppo by itself.  But I found if I used the Oppo as a transport in conjunction with the Gumby it produced better results than with my Cambridge transport. Strange.  I’m still experimenting though.
I can highly recommend the Gungnir.
In my experience Power Cord upgrading was far more effective upgrade than a power conditioner (a PS Audio  Dectet) which I returned to the retailer. I have since made my own power cords. Not difficult, not expensive and big improvement to SQ.
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