Copper Sleeve over IEC

Here is my feedback FWIW:
I bought a few copper couplers - 1-1/4", 1-1/2" & 2". One side of my power cord is less fat than the other side hence I need a 1-1/4" on 1 side & a 2" on the other. I put copper couplers on the CDP power cord, power cord to the PS300 unit & on the RGPC 400 Mk1.
I've had just one reasonably long listening session & so far the conclusion is - no positive effect & also no sound degradation (whew!). In the back of my mind I really did not expect anything much to come out of this tweak as I live in a fairly RF clean environment + I believe that my CDP does not splatter much digital noise. Additionally, I have several other tweaks - dedicated lines, damped rack, damped chassis, elevated cables, Faraday shields over the magnets in my power cords, etc. All these items did make improvements & they've added up each time I tweaked.
All-the-same, I'm going to leave the copper couplers in place & listen more. In my system this seems to be a subtle tweak & subtle tweaks take time to settle in & time to discern.

Agree, let's keep the copper ON for few days of listening until you totally get use to the sound from your gear (WITHOUT modding or tweaking any thing), slide the copper away from the IEC plug, or yet, completely remove the copper from your system..... keep us posted.

I just said it because I could not think of any other posibility. The copper tweak works out for me, instantly.

Did anyone try the double copper shielding like I have? Please report your findings. Very curious what you are hearing compared to a single coupler.

Thanks

Question 1: in Video deparment, has any1 gotten great result /improve when going beyond and trying this copper tweak on the little power cord to the back of the TV?

Question 2: who else has tried tapping a grounding wire from the back of chassis of the CD player to AC receptacle with have great result ?(as seen on Marantz video)

Ozzy, you can get up to 6" copper couplers at http://www.pexsupply.com/Cello-WP0-32-2-CxC-Coupling-1193000-p

After seeing the demonstration on the Marantz, I bought a volt sensor. I have found it of very little use around the Synergistic Research charged cables. I did buy on 2" coupler nonetheless and found it did nothing on any of the SR charged pcs.

The copper couplers are merely shielding and charging the cables is a much superior technique.

I had thought of going into the SR pcs and painting with AVM as I have found painting the exterior of the Stealth Dream and Acoustic Revive Power Reference with this paint and got a substantial improvement. But I don't think there would have been much of an effect with charged power cords, especially given my experience noted above. I believe that AVM, aluminum foil, or copper sheeting bent to shape would all have the same effect. I have also found that the AVM paint has a vibration control benefit on wall outlets, in ics, and of course, within components on input, output, and ac cords.