There's a company called Alan Maher Designs in Tunica, Mi.
I've just been breaking in a pair of new products that deal mainly PFC. They are $600 each and look like a black, double-sized wall wart, but minus any wires. I think the design is active, unlike a lot of Alan's other stuff for NFR, which is usually passive.
You plug them into the wall according to directions...in different duplexes according to where you want to deliver the PFC. I already had a bunch of other things AMD already treating the power that were plugged right near my system and that was already providing some PFC there. But, Alan tells me all PFC is applied locally and when you've applied enough of it locally, it will act more globally in the circuit. For Alan, there are 4 major points to consider that have an impact on AV performance. 1) at the incoming service to the panel (which in Alan's case, is just a laminated wrap of a paper-, or cloth-like material that you wrap around your PVC pipe about a foot or so below the meter (less than $400), with scissors and electrical tape takes less than 10 min. to install). 2) at the panel, there's something called the TDT Panel Kit (about $400) which is more complicated to install, but does not require taking the front plate off the breaker box. A graphene paint is included for you to paint the front surfaces of your breakers, but it takes a day or so to dry between coats and you need to apply 3 coats and then cut the provided copper foil (peel & stick) over the breaker faces...about a 3 day install. 3) Your system duplex. If you don't already have an after market duplex, Alan makes a good for about $100. If you do, you're not done here yet. Alan makes a plastic duplex cover for about $200. I know, if you're like me, your wondering straight away "How in the hell could anybody be asking me to spend no $200 on a wall plate?!?". That's what I thought til I tried it (I have all this stuff). Of course, it's not just a piece of plastic and has materials applied to the back side. But, this little thing Melted My Mind!!! All his stuff requires a "break-in" period, (Alan refers to it as a settling in period, since it is not like break in exactly, a bit of a roller coaster effect, ok-sounding one day and "meh" the next, just like your Mats.For the Wall Plate, it's a period of 15 days, not 14, not 10, not a few minutes, but 15 days...at that point, if it was anything in your system like it was mine, your mind will be blown. The thing about this item now is that the US regulations concerning the glue used for applying the materials have changed, forcing him to come up with a new type of glue. After searching he says he's done so, but that the new plates (functionally the same as the old ones) are not quite ready yet, but Alan is looking at January 2019 to launch his brand on the forum's, including, I take it, this one. 4) system components. For PFC's sake, the whole circuit can be taken as the sum of the 4 points mentioned. 100% PFC at the system = 25% PFC on the AV circuit. 100 PFC at each of the four points means 100% on the AV circuit. IOW, each of the 4 points = 25% of PFC, which is how Alan explained it to me. Technically it is possible to get local PFC of 100% locally...(2 of these new filters I'm testing out [something called the "EDED's"]), both applied to the panel. But, the goal is not to get 100% PFC necessarily. If you did here, there would be harmonic collapse, a capacitor needs a minimal amount of RFI in order to generate mid to high frequecies. Total elimination, means the mids and highs disappear on you. But, even if that did happen, no problem, just back off the filter distance a little bit on the circuit and you can dial in less PFC as you need. It might be useful to understand that might happen, but in most cases, that will never happen to be a problem, unless you have 100% PFC applied everywhere else in the circuit as well. One last thing to say about system PFC. If your system has 4 components, then 100% PFC for each component = 100% ot the total system PFC. 100% PFC for one component would = 25% of system PFC. Alan has all manner of filters available to treat for components (which I have as well), so you should check with him on all that whenever he launches.
If and when you ever find yourself getting into the various filters for components, they will offer further NFR, and some will offer better grounding (another good topic!), as well, but all will benefit the sound every step of the way, just like the Mats do, only you can use Alan's approach to focus more on PFC than NFR, if you want.
The 2 EDED filters are so far absolutely AMAZING!!! I do believe I have even reached the end of my quest in this hobby with this purchase from AMD, I think. But, as you all are finding out with the Mats and all, I did not take on another slippery slope, instead I traded one out for another that has been far more efficient for my dollar spent. With equipment upgrading I was always taking 2 steps forward and 1 step back, but now with all this stuff, everything always improves and nothing is ever left behind or ever gets any worse. No more sideways changes!
Cheers!