Power Cord & Power Conditioner Recommendations

A lot of great information for me to do follow-up research on thanks so much for the input guys!

Something more for consideration:
Isotek Evo3 Aquarius with Shunyata Venom HC (v1 or 2).
The Aquarius made a big difference in my system with the as supplied Premium cord.
Replacing it with a Venom HC v1 brought further improvement.

Awesome thanks for all the info - so it seems all things considered the fact that I have an older house plus the cost / benefit realities would make power conditioning the priority for sound quality and equipment protection - then budget for power cords later. With the 2 powered subs in the tritons plus all other components I will need 5 power cords which is too expensive for me to buy all at once along with the conditioning. Would the conditioner be a product I should buy new (typically I buy demo equipment) to have an equipment protection warranty, etc.? Also assuming the blue book value of the components totals 12k or so what be a reasonable price cap for the conditioner?

Here is additional information to consider that recently came out.

https://www.youtube.com/watch?v=OL23xkLfPTU

Very interesting video - now I can't tell if I'm more or less confused. Is there a valid rebuttal to this?