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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="drdna"] However, my comment was just intended to correct the error when the APS representative said there was no difference in audio system performance between battery and wall power. THERE ABSOLUTELY IS, but it will not be a major d...
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[quote user="Bill"] ….It does produce the cleanest electricvity I've heard in my system in over 30 years of trying… but I'd rather trade out the am than lose the sound I'm getting from the unit.[/quote]
This perception of the relationship betw...
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[quote user="manisandher"] So, the PP+3000 arrived... and went pretty much straight back.As soon as I switched the battery pack on, it started hissing and emitting a God-awful smell. I packed everything up and had it collected the next day. The r...
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I am looking back and my last 2 month frustrations with presentation width, with vertical midbass horns integrations, with relatively aggressive sound bite, with somehow overly labored lateral imaging propagation prom Macondo and am realizing th...
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[quote user="miab"]In my unit there is definately a change in sound running from wall from early in the day to late evening. In the late evening being the better. Before the Purepower this was much more noticeable but to quantify it, the worse da...
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[quote user="joaco"] Romy ;does this phenomena stop occuring with your new unit ?[/quote]Joaco, I do not have these phenomena with my new unit (for now) and I did not have it over a year with my old, properly operating unit. In the end of use of my o...
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I would place my bet on common mode noise being carried on the safety ground long before blaming RFThe ground on the amp has been tried both lifted and present. I have reversed the AC cord using a cheater plug without effect. I have tried grounding t...
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[quote user="AOK_Farmer"] I am ready for a subwoofer sized battery pack by the house electrical service feeding the audio dedicated lines. Whats wrong with this solution? It doesn't exist yet? Heck, $15k in the grand scheme of things...[/quote] Steve...
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Reading today about Mani’s Star Ground idea I was thinking that in context of playback we do not truly know the extent of “Star-ness”. If we do not know how each particular component use ground and we can’t not be 100% sure that our primaries and fro...
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[quote user="Romy the Cat"]I would say that nothing has changed since last night. The sound still a bit harder then I would like it to have. This hardness is very interesting and in way different, it is not type of the hardness that I would disca...
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Romy, these are just some shots over the bow of the Mothership of Fools and Opportunists, since they tend to travel together. If you are an object worshiper, I have not seen it, so this was not aimed at you, nor at anyone to whom it does not ap...
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[quote user="Beav"]I ran quite a few types of gear with the 2000 I tested. It was quiet as a mouse with all of them. So if you're having that kind of high frequency buzzing coming from the unit itself I'd say it needs to be returned and looked at ...
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[quote user="drdna"] I hate to respond to this kind of comment, which is a simple logical failure, but, okay I will, since there is some news. Just to clear this up, simply because you have not had an issue, does not mean that an issue does not exist...
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[quote user="Romy the Cat"] The sound during bad electricity days is all about noise, all imaginable noise; it is like fog, dull everything into some kind of universal grayness. The colors are dirty, the upper mid and HF are literary dirty, the HF ar...
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PP2000 currently has glitch. However in comparison to the sound my system produced before PP2000 in system, I can never go back to wall power. Even prior to APS I had system plugged into Richard Gray units. The gray crackling artifacts have been r...
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Big header, small discussion...The well-designed hi-fi component will not require that a "ground" wire (if any) be connected, at all. In fact, the ground wire can actually introduce noise in some cases, for a number of reaso...
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[quote user="Paul S"] I ask because I have never seen a single corrective device that offers balanced, quiet, phase-perfect power. By "balanced" in this case, I mean that the nueutral/ground is isolated and re-referenced at -60V, while the hot leg i...
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Even it is geometrically the same unit as PP2000 but it officially exceeds the weight limit of to be “reasonable”. I am relatively weak man and I not like lift heavy and bulky things. The UPS men doped at my porch when I was not home and I literally ...
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[quote user="Romy the Cat"]So, what the concussion is. It is known that PP2000, as any switching devise, inject a lot of noise into power line from where it sources power. Apparently the PP2000 own filtration can’t handle the noise from the second PP...
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[quote user="steverino"] If the units are to be placed between the wall and the PP then I think that would be a safe way to use it. I do not recommend connecting audio equipment directly through them though.[/quote] That is kind of puzzling to me. Wh...
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[quote user="Romy the Cat"]I do not know, Model Two was not supplied with 'ground loop isolators', so I am not sure what you are talking about.[/quote]These are described in detail on page 8 of the User's Manual.[quote user="Romy the Cat"]I have two ...
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[quote user="steverino"] Romy said "When I had my magnetic and EMI probes running with open PP2000 cover then the probes showed me that I was in the middle of Chernobyl Black Forest. I think the PP3000 even more poisoning..."
Now I begin to u...
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One way or another, Time has a way of putting things into a different perspective. So I'm wondering how things are going for the bold explorers who forked over their expectations for a whack at the PP2000. Have the things turned out to be...
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Hi Jorge.Firstly, be very careful if you're thinking about feeding a PP with a balanced AC input. It may be different with the North American PP units, but my UK unit did not like being fed by a balanced AC input. My balanced transformers already ten...
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Yes, this is kind of strange. This is a cheap Blue Ray player; I think it is Sony BDP-S790 for $279. It played anything and supports live stream for pretty much anything. It is very comfortable to have it in opera room as video source. The picture is...
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Romy, no not at all. I'm listening to music right now and prefer running directly from my new AC mains rather than from the PP2000 battery. But it's so soon after my dedicated mains system has been installed that maybe I should just wait a while befo...
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[quote user="Romy the Cat"]Instead of simply fixing the PP2000 you decided to try isolation transformer way.[/quote] With all due respect Romy, you of all people know that applying the term "simply fixing" to the PP2000 is ridiculous. I don't have th...
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Great news on the PurePower front. I wasn't sure you would ever reach this stage.I would think PurePower should just use #2 unit as the exact blueprint for their PP2000 going forward although see two main obstacles: 1) Like everyone else, PurePower m...
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It's my system that Romy discussed above. I've been fighting electricity problems for 25 years using everything from home generators to multiple 3 KV isolation transformers in series with banks of caps, to multi mega-buck high end audio products to l...
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[quote user="Paul S"]I suppose there are the usual strong strictures against it, but has anyone tried lifting the (3rd wire) ground only during wall-powered operation? Best results, whatever that might mean, would require a "dedicated home run" for ...
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