Copper Sleeve over IEC

Interesting video, which shows the application of multiple tweaks (not just the copper sleeve). Have you tried using a homemade ground wire as seen in the video? It looks as if he used a regular 3-pin plug, but removed the positive and neutral pins – leaving only the ground pin; then he simply screwed the other end (bare wire) to the back of the CD player. Additionally, he noted that you should load each CD twice before playback. Anyone try all three of these tweaks in combination as seen on the video?

My CD player already has a 3 prong outlet, so I havent tried that suggestion.
Nor have I tried the double reading trick, although that one is easy to do anytime.

I guess I didn't catch the fact that the Marantz did not already utilize a grounded connection - I thought the tweak was in addition to... Strange that a highend unit like that doesn't utilze a grounded connection.

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.

RE: Enhanced Video

Did you place the copper sleeve on the DVD player/transport only, or did you also place one the TV AC cable?

Also, what's the consensus on diameter, 1 1/4" or 1 1/2", and if you were to place some adhesive-backed poly foam (like a weather stripping) inside the copper sleeve to help hold it in place, would that have any negative impact on the enhancement (i.e.: dielectric problems)?

Thanks. I went ahead and picked up a $5.00 copper coupler during lunch today...why wouldn't I, after reading more than 90 (mostly) positive reviews here. I have to say I am skeptical. I'll give it a go tonight.

You have to be kidding.

Now, I realize the only reason I didn't hear, or see anything different by including the copper coupler is because my ears aren't as trained, and my system isn't as detailed as everyone else here who hears and sees up to 15 percent difference. That said however....you have got to be kidding. I can't say I was disappointed, as I really didn't expect to hear/see any difference. I will tell you all this, I have been concerned about my seating height, so I placed some 2X4's under my couch (that's a 1.5" difference) and the change was rather dramatic - it's what I needed to do all along. Thankfully my hearing is good enough to discern the difference. I only wish I was capable of hearing the enhancements made via the copper coupler - which I'm keeping in place just in case my hearing improves (and my eyesight).

Well don't take it personally Nasaman! In actuality, I really did not give the copper coupler much of an evaluation. I simply slid it on and off during audio/video playback a few times and I really couldn't discern any differences. I'm going to leave it in place though. You know, I spent hours - days actually, tweaking my stand, and I employ a number of other tweaks (e.g.: weights/damping on the chassis of all the equipment, dedicated AC line/outlet, after market power cords, etc.), all of which I really can't discern much difference. I suppose it all adds up though (that's what I'm sticking with). As I mentioned above, I can actually hear a difference after I elevated my listening position by 1.5 inches; that, and I most certainly can hear a difference in late p.m. listening sessions compared to other times of peak power consumption. Those last two "tweaks" being free! Another freebie is speaker placement tweaking. For me, very slight changes in positioning have yielded big returns - in fact, I’m sure that I have not found the optimal position yet, but it’s a pain in the %@#!, so I keep putting it off