Power Cord Recommendation

The lower cost Transparents are also quite good

Thanks for all the advice. Much appreciated.  

Noticed absolutely no difference in sound with Signal Cable vs stock power cord. Recommend Audio Art Cable 

For me best low cost power cord is an audience, they are generally between 2-3 hundred used.

Currently using a Pangea AC9?  .....   Not really a good match for the type of amp you have.The AC9 is designed for high current amps. Its brutal. 
You need something more nuanced with excellent smooth detailed sound. I would look at the Pangea AC-14SE MkII.  And, go for two meters even if you need a short cord. It could sound better.   I had an AC9. Got rid of it.  I believe your amp would sound better with the AC -14SE Mkll. The Cardas copper it uses can make your amp sound sweet and open. http://www.audioadvisor.com/prodinfo.asp?number=PGAC14S2