Power cord replacement suggestions

IMHO, I would replace the main power cord to the system first. Install at least one, preferably two, dedicated lines from the breaker box to upgraded outlets at the system. It is better to use upgraded component power cords with dedicated lines than daisy chained AC wiring to a $0.97 wall outlet.

Got that covered, tls49. Have 2 10 guage runs from panel to 20 amp hospital outlets. So i want to start with one aftermarket power cord as a step closer to insanity. And to all , thanks for the input.

@droleg,
You might get a more specific answer to your question if you were to list the audio equipment you use, including a power conditioner or outlet strip if you use them.

The system consists of ayre 5 exmp cd and pre, and a pliniuc sa250 amp. No power conditioner. It was more of a general question of whether it's generaly best on source, pre,or amp, but if someone can make recommendations specific to this, than all that much better. Thanks

@droleg, in your system I'd start with the cdp, preamp, amp last. I've owned several Plinius amps and currently own a Pliunius SA Reference.