Copper Sleeve over IEC

One final thought.

Please be careful when adding too many of the copper sleeves to ones system. I own a Synergistic Research PowerCell 10 SE. Everything is plugged into this powercell. Including all my Audio, Video, Home theater, etc.

I have found that a copper sleeve on the CD player IEC is a very good improvement. But, when I continued to add more throughout while keeping everything plugged into the powercell the sound dulled, especially in the high frequencies .

So, experiment, have fun, and lets hope the Economy comes back soon.

Also, after today experiment,I want to confirm that this copper tweak WILL NOT work on Ayre D1xe DVD player. The video will be blacked-out. Confirmed.
Note: Ayre D1-xe equipt with seperate power supply.

Same as Ozzy, too much was not a good thing for my system either.

The tweak worked awesome with my CD player (or what I'm using as a CD Player, PS 1), and my Oppo 980 DVD player, improved, but to a lesser extent, my DAC, but killed the sonics on my tube integraed (PrimaLuna PL2).

I have an aftermarket PC on my amp and stock cords on my other gear (don't know if that makes a difference).

I also have the couplers on both ends of the digital gear.

On the amp, it flattened voices and made the high frequencies "tizzy".. I only had the coupler on the female/amp end but it was a very noticeable degradation of sound.

Either way, great tweak.. best $2.39 CDN I've ever spent. I can't believed it worked.

I also make a little sleeve with Duct tape around a little bubble wrap to create a snug fit and have the couplers tight up against the chassis..

Wondering if it puttin a coupler on my cheap power conditioner would make a difference?

Wow, with this copper sleeve, the video is also greatly improved, too. Not just more colorful but clearly details as well... Speechless!
"Out Sourced" movie is a great one for testing sound and video. Grab one!!!

Nasaman, Quite honestly I saw the biggest advance in Video with the tweak.. Audio about 5 to 10% maybe, video 15 to 20% cleaner. For the most part as stated above this is most effective on digital gear, however more so on the transport side even over a DAC.