Discovering I may have the cleanest AC power in USA


PS Audio Noise Harvesters are on sale. $50 each.. So naturally I had to buy a pair. 36 hours later in my home.Well I clean the prongs, Caig Gold them, and plug them in.
Nothing.
Nothing.
I am wondering broken? DOA?
I move them to other outlets not on my stereo in the kitchen, in the bathroom (the bathroom has a air cleaner plugged in the same outlet, motor running). OK a single blink.
I remember the dimmer thing. Plug the Noise Harvesters into the stereo again.. and turn on the only dimmer in the place (in the bedroom, on a different circuit) KABLAM!!! Now they are blinking pretty regular. OK they are NOT broken.They also blink when I put them on an Adcom AC box also on different circuit than stereo. Both the Cable internet box and the WiFi box are on it. And yes they blink every minute or so.I checked the Furman REF 20 outlets, no blink. The direct to the amp.. no blink.+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
So I apparently have just naturally the cleanest AC line in America? (For my stereo equipment.)
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Part of it may be the fact I packed the duplex enclosure 20 amp single line I use for the stereo with small quartz crystals coated with Automotive dielectric grease, in small baggies, the duplex is also the Furutech GTX NCF type, and the wall plugs are also filled with the loose small quartz crystals, plus some flattened baggies of the crystals wrapped around the outside shell of the plugs at the wall
Good thing I only ordered two of the Noise Harvesters. More are not needed. (and I actually do not even need the two. but that is OK. I can keep them as a sentinel, to know if I ever get noise on the lines.
So I do not know if my home made anti noise crystals work magic? (along with the Furutech NCF which is basically a refined version of my own crystals) or if I really do have some of the cleanest AC around. (PS I live in a 90 unit apartment building, folks above below, around me. Things like my frig I have several ferrite cores with the AC zipcord wire wrapped in and around them, ditto air cleaners, lamps..
elizabeth
I use duplex in 'in wall' boxes. as extension cord terminations but I just leave them on the floor. Two lines, and six Duplex. all from one 20 amp outlet.  one duplex separate in line, then two in another box at the terminus.
@12blistn - If you do use Romex inside conduit then do upsize the AWG since it is not designed to operate in conduit and it may overheat.   I'd go to 10AWG just to avoid the problem.   However, it is going to be stiff and the solid Romex doesn't like to bend, so don't plan on moving it often. 

Why not just twist up a white/black pair of THHN 10 or 12 AWG wire with your drill and keep the ground wire separate from the twist? 
I was wondering about Romex inside conduit and didn't think it was used that way.  I want to keep the same form of solid conductors like inside the wall instead of using stranded wire.  I do like the idea of some type of shielding, also.  I think the type of conduit I'm thinking of is called armored cable and is semi-flexible. I'm not sure about connecting a plug on the end.   It won't be moved much.  I know Pangea makes a quad box, but I was thinking of a little cheaper experiment. 
@12blistn - In that case, twist solid wire instead of the stranded stuff.  Do keep the ground or earth wire out of the twist.   That is, only Line and Neutral should be twisted together.   You can get flex conduit in 1/2" or 3/4" conduit sizes and electrical boxes are easy to find in these sizes. 

If you use the armored cable, the wires inside are not twisted, so the fields around the Line and Neutral will inject currents into the earth wire, which can come across as a faint hum in your system.  That will definitely muddy up the sound a bit.  Twisting them pretty much eliminates this injection.