after market power cords for power conditioner or amps etc


Hello,  my front amps, subwoofer and A/V processor are plugged into a Furman IT 20I.  I was thinking about getting some middle of the road after market power cables to experiment if the power cords really make a difference.  I am thinking it would be a good idea to begin by replacing the power cord on the Furman IT 20I instead of incrementally repacking the A/V processor and amps chords.  Please advise.
Thank you.
Guy
guyt
I replaced the chords on my amps, preamp, & source with Nordost Red Dawns. It hurt but there was a noticeable improvement. I plug them into a Niagara 1200 for power conditioning. The Niagara definitely made the biggest difference for me.