The best Neutral Power cord ?


I am looking to upgrade from the stock power cords on my amp, DAC and Preamp. First of all, do power cords really make a significant difference? If they do, what is the most neutral sounding power cord in the $100-300 range (used price of course. Do you have any suggestions? Please help.
kasboot
Check out the Audio Asylum. Go to cables and do a search for "89259" and you will come up with oddles of info on a cheap DIY cable that is very neutral. The design is by Bob Crump of TG Audio and you can not beat the price.
Sorry, gave you the wrong part number to search for. You need to do the search for "19364" which is a Belden part number for their 14 ga shielded power cable.
I have had good results with Vansevers power cords. They make standard cords of various standards as well as the Pandora which is can be "tuned".