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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="Romy the Cat"]From what you describe I conclude that you have ground loops regardless of the PPs and the PP juts highlights the problem.[/quote]This may well be the case. I can't even remember the exact components I was using last year (...
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It looks like PurePower is selling big their new Canadian-made unit. I wonder if any rumors about the performance of new units compare to the older units. I did not spend any time to look online but I wonder if anybody manages to get it and might rep...
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Paul, I'm happy to compare the new PP+3000 to my old PP2000 and share my findings. The new unit has arrived in the UK from Canada and should be at my place this Friday.It's true, I didn't particularly like the sound of the PP2000 running from its reg...
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Well after getting little communication from PP I decided to sell my unit. The last communication from them was on 1-7 here is their response:Hi Steve,The reports you have provided are giving us valuable clues to the cause of the noise, but are not d...
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[quote user="Romy the Cat"]You might change your mind after you put the PP2000 into the game. Anyhow, I do not know what Bruce did with his Titans tweeter; I do not even remember it they are in time-aligned position. The EdgarHorn Titans uses Fane ST...
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[quote user="Paul S"] Didn't you first become aware of MF "problems" when you got everything else working better via the PP2000, and the MF wound up dropping back to weak sister status with respect to system-wide PP2000 benefits? [/quote] The PP2000 ...
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I am I wondering if my dissatisfaction with my new ULF channel is not the problem of my but the problem of the new PP2000 lower bass.
http://www.RomyTheCat.com/TreeItem.aspx?PostID=15046
at the time I start fine tuning of the ULF ...
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[quote user="Romy the Cat"]Simply beyond any criticism. The Purepower bass was something that sold me on the very first unit in June 2007. The very first Purepower 1050 had the same type of bass. What kind bass? Well, if juts did not “improve” it and...
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[quote user="Romy the Cat"]First of all I feel that PP2000 is slightly “released” some HF.[/quote] The reported “softness” of PP2000 came with some HF roll off. I drive my MF amps much harder while I use PP2000 and it was a good help but still there ...
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As I said before, in many if not all instances the provisions for “bad electricity” are deeply entrenched into the design of our playbacks. A few days back I took advantages of some new possibilities that PP2000 offered and made some changes in playb...
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[quote user="drdna"]Well, it gave me a chuckle. I will be interested to hear about the listening results, considering I have just bought a PP2000, which should be here in a few days. Will I have to buy a Avicenna now also? Adrian[/quote]
Adrian, I d...
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After the endless battles with bad electricity, great news that you have found one, and possibly two, good solutions. I can vouch for the terrible electrical infrastructure and great radio stations Boston has to offer. Some days my system sounds pr...
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Since the PP2000 works in my playback a bit over two weeks I think it would be worth to mention the changes that I observed after two weeks.
The HF and upper mid region returned back. Not completely but most of it. They returned without mind-oppres...
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[quote user="Paul S"]Adrian, you mentioned a while back that you'd taken The Plunge. How goes your own test? You've never mentioned it again.Paul S[/quote]Paul, before I had a chance to take the PP2000 out of the box, I had to have surgery for a knee...
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Okay, today I hooked it up and have spend some time listening. The change in my system was very dramatic and positive. First of all, it seems suddenly like a good electricity day. The noise floor dropped out. The timbre of the music and the body ...
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[quote user="drdna"]Okay, today I hooked it up and have spend some time listening. The change in my system was very dramatic and positive. First of all, it seems suddenly like a good electricity day. The noise floor dropped out. The timbre of the mus...
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Using the PP2000 has been a very interesting experience. Immediately listening I am NOT struck that it is the most wonderful improvement ever, which I have said before is a GOOD sign. Usually the seductive sound changes are colorations that are enj...
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[quote user="Paul S"]Every case of a "dedicated ground" I have seen, including my own, involves only the redundant "ground" wire. The "ground" wire may not be useful for every component, and it can actually introduce noise in some cases.[/quote]Toda...
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[quote user="Paul S"]No, the ceiling fan switch is not supposed to read through the PP 2000. But, that's Showbiz, or so I'm told.No doubt APS has loads to say about it, as ever...Paul S[/quote]Actually the ground issue is not too much of a prob...
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[quote user="Romy the Cat"]Is your “noticeable ever-present buzz” coming from loudspeakers (I mean is it acoustic noise) or is it a mechanical noise that coming from regenerator and it comes from your component plagued into the regenerator. In first ...
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Considering that PP2000 isn't plugged into a dedicated line and that line can be shared by other electric devices plugged into the grid, I wonder if the hum noise is getting into the PP2000 not from the ground wire, but the neutral wire for some defe...
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[quote user="Paul S"]It is confusing, but the NEUTRAL is not only "referenced to ground", but in properly-designed components it is THE ground. If the PP2000 is a 120V device with a 3-prong plug, then it has 2 references to ground within its chassis,...
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[quote user="Paul S"]Adrian, may I assume that if your unit was finally sorted out, then you would have said as much by now?[/quote]The issue is unresolved. The unit still emits a buzzing sound when it is plugged in. I have sent a few e-mails to APS ...
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After many unanswered e-mails, I got word from APS today, who said they have had a few customers with similar issues and that it seems to be system dependent. However, they also said that they were working on a way to fix this that they might have i...
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[quote user="Romy the Cat"]the hum people apparently pick their own ground loops that too masked in noise without PP2000.[/quote]It is not exactly correct. There is 60 Hz hum eliminated by lifting the ground to the amplifiers. The neutral is connec...
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[quote user="Romy the Cat"]When a PP2000 is unplugged from the wall and runs from the battery it is not that PP2000 is unplugged but the ground via PP2000 is unplugged. You most likely have no noise because you have another path to ground and your sy...
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[quote user="Romy the Cat"]When a PP2000 is unplugged from the wall and runs from the battery it is not that PP2000 is unplugged but the ground via PP2000 is unplugged. You most likely have no noise because you have another path to ground and your sy...
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[quote user="beachbum"]Did so cause i was still using my BPT for everything but my amps. I had a hum and high pitch buzz from my speakers. Replacing the power cord feeding my amps was the cure.[/quote]There was some mild 60 cycle hum which was elimin...
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Something very interesting happened today in my battle with the incessant buzz in the PP2000. No, it did not go away unfortunately, but I learned something new.Perhaps inspired by the recent discussions around the original pressings, I decided to spi...
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[quote user="Bud"]Sounds to me like your switch mode transformer is doing the buzzing... There is always a turn on buzz, but just for about 10 seconds. The original one had a noisy fan also, to keep it from self igniting, perhaps that is your actual ...
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