Advice needed on power cables, wall warts, conditioning, electrical outlet

I'm in a similar situation as OP.  Over the past year I've upgraded every component and now have a very nice sounding system with Electrocompaniet AW250R, Manley Neo Classic 300B pre, Lampizator Baltic 3 DAC, Clearaudio turntable w/ Nagaoka 500 cart, and a legacy Musical Fidelity CD player that I run using optical through my DAC.  Everything is powered through my Panamax line conditioner which has a fixed PC.  And all my PC's are stock.  I've been thinking about giving better PC's a try but have been a bit lost in the constant back and forth about whether PC's matter.  I think I'm ready to give it a try so will be watching for recommendations on good value PC's and appreciate suggestions.  i'm not really sure my budget yet...thinking to maybe buy 3 or perhaps 4 to power my amp, preamp, DAC and maybe Panamax.  If I could spend $150 per cord and get something nice it would be a huge win.  If I had to spend $250 a cord that would be doable.  Could probably even be convinced to spend more on one or two vs the others if I had any idea which would give me the most bang for the buck...Also I'm wondering about my Panamax...is it a reasonable way to go with my system or would I be better off ditching it and going with something else?

I swapped my power Furman Reference Power Conditioner out for Pangea Premier power strips, and I found it was a significant improvement in sound.

Power conditioners are a tricky thing.  They help with hum, but can hurt dynamics... and it very dependent on the type of gear and power you have.   Obviously anything with switch-mode power will likely need more conditioning and isolation.   I'm strictly class A / AB.  

Anyway, if you are willing to live without surge protection, I'd suggest taking a listen to your system without the power conditioning.  I think it does more harm than good 70% of the time and it will free up some rack space too!

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Wow!  I am extremely grateful for all of the awesome and practical advice.  Very, very helpful indeed.

Thank you all so much for this Masterclass!

Have a great rest of your weekend.

You can't  go much wrong with Audioquest thunder, X3, and Z3 power cords. Own all three and I'm happy. Also Audioquest Edison receptacle is very nice, grips like a gorilla. 20 amp dedicated circuit Here, run myself, lots saved. All plugged into Audioquest 1200 and the Furman pst-8. Both designed by the same guy. 

I did this experiment:

1. borrowed very high end power cords - significant difference - but not as much as spending the $10K on the pre, the amp, or anything else

2. installed isolation transformer to run separate outlets at 20% of above cost

3. plugged factory power cords into isolated outlets - sounded better than expensive cords into normal outlets (1)

4. plugged expensive cords into isolated outlets - no different than (3).

Experiment proved that in my case, an isolation transformer worked better than expensive power cords, for much less money, and expensive power cords brought NO improvement after the isolation transformer cleaned up the power.

For context, I live half a mile from the nearest commercial user, five miles from the nearest industrial user.

This experiment contradicts the strong opinions of our resident armchair "experts". Use the information as you see fit.

Good luck.