I have ZSTYX cables. Technically, since Steve is nice enough to provide the part number, I bought a remainder roll of the cable and made my own, but it is the same stuff. And they have no shielding at all.

I live in a very "RF live" area myself, and my solutions to the problem are these: since I have UFO25 mono blocs, I have them very close to the speakers and my cables are only a couple of feet long. Also, my system is balanced all the way to the speakers, and that reduces the common mode noise caused by the surrounding air force base.

Balanced isn't an option for you but depending on your geometry, and your willingness to cut down the cable, or get Decware to build you short cables, or find your own, you have the option to move your amps and run short speaker cables. Which wins in more ways than just reducing RFI.

I have been using zstyx for both my mains and subs for years and love them. I switched to SRA Takshaka for both IC and speakers and made myself keep them for a year but found the Decware cables every bit as a good, and sold the SRA’s. I’m not sure if I live in a high RFI area but I’ve found the zstyx to be a tremendous value.

I could see that. They do have a slightly brighter top end than the previous cables I had used (Blue Jeans, Belden 9497, and a variety of DIY) but with it came a bigger sound stage and better bass definition. I know the brightness is generally an issue for you, Lon.

Not to detract from the original question. I’ve moved a lot and lived in both city and rural areas. Speaker cable interference has never been an issue for me and a majority of cables aren’t shielded. Interesting that it can be an issue for others.

I, like CAJames, use a DIY version of the same ZSTYX cables on both my systems without any RFI interference.  They are fantastic cables once broken in.  They were a tough listen due to brightness initially but settled down in my systems.  Also, I have used them on my AE monos with no issues.  Like CAJames mentioned they are an unshielded cable so not sure if you will get improvement.  I also think moving your AE Monos close to the speakers and getting some nice shielded IC’s would bring the best result.  Here are some pics of my ZSTYX cable in white.   Good luck