I was recently tinkering with power cord construction after reading about using different plugs on this site:http://www2.hawaii.edu/~uyeyama/stereo.html I have tried a few different power cords in the past and have never been able to tell a difference. So I have not detected any difference while just trying "one". I went to RatShack and got their shielded IC power cord and cut into it and put on the Levithon. I like to get an idea of their construction as I build my own cables. Anyway it's pretty basic construction. The wires are screwed down with a "clamping" type action with a nut and screw. Now, I couldn't readily find a IEC, let alone a high quality one. I'm sure they could be found, but all my electrical supplier had was one's the maybe cost a buck something. Wire too, seems readily available at your Home Depot stores, along with the quality plugs. ($8) Anyway, it was enough experience for me to see that some of the Power Cord manufacturers know what they're doing, and provide a quality product. So, I was doing this all prior to trying the cumulative effect of 3 BMI "Majik" cords. Now since, I hadn't noticed anything on previous experience, I pretty much didn't think there would be any. But, with my Solid State preamp, It was as much difference as a new or different preamp. And that was without the preamp even having one. 1 ea on monoblocs and one on an EAD MKII. I really "opened up" the presentation. Quieter background, and finer resolution. I am now trying the same everything with my tubed preamp and I really don't notice the change. So, for me it's been a combination. One thing is I noticed that moving things around to different outlets got rid of some noise. My stuff's nothing fancy, but it is high-end and very transparent. Since I biamp and am driving a total of 4-12" subs and 8 other high end drivers, they are exposed, and I can see how much they are all "working or moving", there's no doubt in my mind I saw them move with greater finesse and control then I had ever seen before. So, even though I didn't build a great power cord, I feel content to try a "Manufactured" power cord. It does make a difference "how" a power cord delivers to piece of electronic equipment. Again for me, it was a "cumulative" affect. I also cleaned and treated all connections and tried different outlets seperating components. For instance previously when I had the CD on in a certain plug it would add noise. But it didn't have a detachable cord. But moving its plug-in made it dead silent.
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