I would like to know if there would be anything to gain from changing the mains power cable and plug on my receiver. Its one that is hard wired into the unit so I would have to open it up to do the upgrade. I have already replaced the volume potentiometer in my STR-DB930 to give a smoothre volume curve. So im pretty confident I could do the mains cable swap. If you think this is a good idea, does anyone have any suggestions for cables/ plus I should use?