Power cord choice?


Hoping to change (or upgrade) my current PC in use with my ARC CD3 Mk2. Currently I'm using a Locus Designs Polestar and setting a limit $600 max. I'd like to find a cord that can get more micro details from the ARC yet, I'd like to retain the smoothness but, try to open the sound stage and get a little more bottom in doing so. I listen to Alt rock (Sir Sly, The Killers, Gargage), rock, blues using Classe CAP 151 integrated and Apogee Slant 6s. I know this is subjective but, I'm also doing my best to work with my budget constraints and I'm not going to change if the improvement would just be slightly incremental. I'd like suggestions to consider, please.
rsjm80
For all of you guys out there who are smarter than I am with computers here’s a guy who shows you how to perform a null test With some software and computer. It would be interesting if somebody out there could do annual test on their computer between a normal cable and an expensive cable and let’s see if these guys are full of it or not

https://youtu.be/52kbgFAuu6k
A good quality isolation transformer feeding sn audiophile grade power conditioner is the best you can ever do. 
I owned this very same CD player years ago. When I had it I used Shunyata Python Alpha VX and the results were phenomenal. I run a Bryston BDA-3 DAC now with Nordost Heimdall 2 power cable and I like the sound a lot. Plenty of details, low noise floor, full sound, smooth, great depth. I wouldn’t hesitate to recommend this cable and on the used market its well within your budget. 
A good quality isolation transformer feeding sn audiophile grade power conditioner is the best you can ever do.


Not even close. The average Li battery with full sine wave inverter will blow any isolation transformer - power conditioner out the water at a significantly lower cost.