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I figured out that my site turned out to be a quite good source for “PurePower’s Survival Guide”. It would be nice to abstract the PurePower into a separate subject but it is too much intervened with the thread of “Bad Electricity” that I decided to keep it as is. Anyone, I hope the people who cluelessy use PurePower and who strive for better results will find this post.

Last night I listening the 6 sides of my “Die Walkure“ I caught myself that all HF went back and the sound was not HF challenged, furthermore I even rolled off 2 db on my tweeters. The record I played were un-played, tulips, first pressings but the recording was not to my liking. The orchestra did not do what I would like it and the sound was what other my call the typical DG sounds. I cared less as I was listing for different thing…

Somewhere in the mid of the second act, I comfortably posturing on my couch, clicked a few DB mode right along with Wagner turned loud and it suddenly came to me that something was wrong. The brass section of Berlin Philharmonic during upsurge becomes almost painful. That was the effect that I thought the PP2000 cured and soothe that I did not experienced for 10 days. That puzzled me. I looked careful at the sound that I was getting and I did recognized a lot of sighs of bad electricity at HF. This type of sound I was attributed to the given records and had no thought about electricity as my entire systems was running from PP2000. I put the “Die Walkure“ aside and played the recordings that I knew. It was obvious that SOME aspects of bad electricity came back: excessive HF, improper integration between woodwind and strings, “noisy” sound of woodwinds, flatten imaging of upper frequency region, absents of sophistication in horizontal propagation of portrayed sonic events, few more and too long to mention them all. What pissed me is that the whole system was running from PP2000 and I changed nothing.

Since I introduced the PP2000 I literary took my playback apart as all power cord and power suppliers needed to be rerouted. Yesterday morning I cleaned up my room and put all right power cords in this final location, finishing the experiments with power lines, PP2000 and taking the PP2000 box to the storage. I however did not change anything in the connection and my playback still was ALL running from PP2000, all 19 receptacles. I figured that ether the PP2000 got broken, of the power line begin to have something that PP2000 was not able to decouple handle. It made me very disappointed as one of the greatest accomplishments of the PP2000 was (I thought) that I would never will think about instability of electric quality anymore. Well, the result I was getting made me very sad.

I was trying mentally to return to the glory time of the PP2000 (a few days back) and I asked myself what I did wrong. I know that the morons who sell $5000 power cords in context of bad electricity would say that I used wrong power cords to lay doe the final setup but it was not the case. First I know my power cords and second the type of the problem that I faced was very much beyond what power cords might be even theoretically to be responsible for. I decided to debug even it was very late but I might not have time this week and I really did not want to end the year with the knowledge that  my problem with electricity is still pending.

Well, it was painful, ugly and I have found the problem near 4AM… I for a long time did not go to bad so “satisfied”. It turned out that that problem was not with PP2000 but was a very minute and completely neglected by me change I made that I even forget to acknowledge. It however had a profound effect and screw up all sound.

So, what I did. I have Dorrough –made, high precision 1/4dB modulation meters on right and left channels. They are digital and I run them for years to calibrate the output of each channels, the people who run multiamping with tubes would understand now indispensable this tool is… and I run 12 channel of active amplification. They are 2Meg input impedance and have absolutely no impact to sound, I usually keep them unplugged of plagued in uppers bass channel. I did not use them for the last two weeks but since I put all system back I plugged them. My PP2000 sits in the closet on the left and the Dorrough meter for my right amps had no length of the cord to go the and I figured that it would not be too much hard to plug it in power lines. After all it has no ground connection, uses only hot and neutral, has huge input impedance for signal and affects nothing. Well, good luck with this thinking as unplugging the Dorrough meter from the power lines and plugging it to the PP2000 regenerator eliminated all problems that I describe above.

So, what is the concussion? In the following article:

http://www.romythecat.com/GetPost.aspx?PostID=9250

I accented how critical to maintain in the components connected to PP2000 an absence of any other grounds. However, the story with Dorrough meter sudsiest that it is not only the alien grounds but the alien neutrals those screw up sound of equipment driven from PP2000.  So, if the power line has .630V between ground and neutral, the PP2000 sits on the same ground but the PP2000 outputs 1.120V between ground and neutral then those neutrals are absolutely not compatible, otherwise you might be paying the sonic toll as I did. Connecting Dorrough meter into neutral with different reference to ground had horrible impact to sound, much worth then I even might expects. Whatever the reason is but it shell be considered, knows and used as the playback connected to PP2000 looks like hipper sensitive to those sort of things.

Rerurn to Romy the Cat's Site