Furutech Power cables options

Hi, forgot to mention that I am from India and don't have any option to audition here... The power supply in my area is not very good and hence would like to try a high end power DAC... 

I actually would like to know from experienced members if the cable makes most of the difference or the connectors, if any...

Some connectors are reasonably priced and some are outrageously priced.. Wondering how much of a difference do the connectors make and if the main cable is what carries the magic, if any...

The TCS31 is cheaper than the above mentioned and I am skeptical of how much a difference will a power cable make to the overall sound w.r.t the prices.. I still think it's too much for just a power cable and would rather experiment with a mid level one...