We began our test today (session 1 for a reference).
Well, just when I was nearly convinced that power cables don't make a difference, my friend finally made his way over another friend of mine's house today with 3 different power cables. My friends system we tested them on has a Denon avr-3805, and the SVS SBS-01 speaker system. Nothing real fancy here, but solid equiptment for this basic test.
We ran the system at reference levels (00 master volume on the Denon). We changed out the power cables on the receiver and the PB10-NSD Sub. We didn't use any measuring tools other than our own ears for this session. All we used for a test DVD for todays beginning session (as I wasn't going to continue these sessions unless we all agreed, especially me since I'm the one possibly in the market for these cables, came to a definate conclusion as to whether we/I heard a significant difference or not) was the beginning scene of Star Wars 3 "Revenge of the Sith", Chapter 3, for about the first two minutes. The bass is very intense in this opening scene, as is the whole battle scene for that matter utilizing all speakers.
We listened/watched this scene 4 times with the stock cables, then with the cables he brought with him (PS Audio Plus 8 guage 2 meter on the receiver, and a "Magic" PC ran from the sub directly to the wall outlet). I have to say everyone, I DID certainly notice a difference. And, I didn't have to listen carefully either. It was overly apparent from the first sound. First, when we played this scene at reference levels, the Sub was right on the edge of bottoming out, or so it seemed,(this was with the X-over set to 80Hz on the Denon with the volume set to -5, and the master volume on the back of the sub turned up about 30%, or about the 4:00 position) as this scene has some serious LFE. Everything else sounded great. And, that little SBS-01 system really surprised me, but thats for another thread.
We then changed out the cables. Ok guys, I'm just telling you what we heard, so keep the gloves off.
First, the bass was noticeably more tame, and not so out of control as it was without the cable change, and was able to sustain the LFE without any sign of heavy stress like before. Also, the higher frequencies seemed to be not so in your face like before, and as the ships flew across the sound stage, it was more seemless, and less directional than before. So, I realize some may come back and disagree with me, but I really was trying to prove my point too, that being that this is nonsense. How can a PC have an audible difference and effect the sound characteristics? Well.... I don't know how this phenomenon works. But without doubt, I certainly noticed a difference grinning ear to ear in disbelief.
Next, for our second session, we're going to test these same cables on my system, which I already know it's sound charitaristics well with as many movies as I've watched. So stay tuned...... This second session will be utilizing these same power cords on my Denon 4308ci, Denon dvd-3800bdci & SVS PB12/Plus2. Thanks for all the great input from everybody. Kevin