Installing Dedicated Power Lines -- Need Advice

If you want an engineering explanation these might not be the exact product but they will give some understanding of what's going on.

https://audiosciencereview.com/forum/index.php?threads/audioquest-powerquest-3-video-review-ac-filte...

https://www.audiosciencereview.com/forum/index.php?threads/do-you-need-ac-noise-filtering-for-your-a...

https://www.audiosciencereview.com/forum/index.php?threads/ps-audio-noise-harvester-video-review.207...

Thanks to the late great Almarg.

I can't find a review of the Decware. Here is a review explaining how balanced power conditioning works. 
https://positive-feedback.com/reviews/hardware-reviews/core-power-technologies-equicore-1800-mk2/

I believe common sense is an asset when it comes to this topic. The best solution to filtering or regenerating a garbage ac line is to eliminate it from the equation. I have an ASR amplifier that runs off two power supplies and a battery. The battery has installed, six lead acid gel rechargeable batteries. The two power supplies, recharge the battery and that’s how the power amp gets its juice. My system sounds clean and my other components are just plugged into a passive PS audio line filter. There are other high fidelity amplifier manufacturers who are offering battery power to their flagship products. And that’s because the solution is so simple.

Just an add on: If you are in an apartment, are there others? Best upgrade to a multi-unit building is a dedicated ground from your box.

hilde45- Very simply, and for the last time:

What they are saying is they have a power supply that is so perfect nothing can possibly make it any better.   

Do you believe them?