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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="Lx_"] Also Romy suggests that even its old, well-performing PP was still sensitive to input AC (I have yet to read his post about this). So it seems that the PP is indeed not completely immune to incoming AC noise, and any solution to lo...
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[quote user="Paul S"]Any updates from users/sufferers on the "new", lighter/cheaper-to-ship APS stuff? Mani?[/quote]No, not from my end. I've kind of given up on 'upgrading' to a PP+. I've gone around in circles with my current PP2000, sometimes lik...
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Floobydust, I very much disagree with you on it, not because I have an alternative view but because I have practical evidences that what you say is not sufficient definition of “good for sound electricity”. The lower THD is not adequate representatio...
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[quote user="Lx_"]The effects on sound can be described either globally or in details. Globally the music flows less, the sense of musical phrasing is diminished, sound tends to tighten, feel constricted, dynamics are also reduced. When trying to...
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[quote user="Romy the Cat"]Whoever follows this thread of mine note my exuberant reaction to the new fixed PP2000. What however I discover today is that for the last few days, right after the snow storm, the quality of electricity in my lines is ...
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[quote user="drdna"] Well, I think the short answer is yes.
What the people over at Technical Support have told me is that this is due to the power supply design of the amplifiers that are being driven by the PP2000 and that it seems to be cha...
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[quote user="Paul S"] 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 Plug and Play along with All That, or is this yet another case whe...
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drdna wrote :"...What was more concerning is today some 60 Hz hum also re-emerged in the system... As everything is plugged into the PP2000, I am not sure how to deal with it..."Before opening up AC outlets and breaker boxes, here's a way of disconne...
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What picked my curiosity and what I found very interesting is to learn if the Running Springs Audio (RSA) flaks own any truly dymick/harmonics not screwing filtration know-how. If it so then it would be VERY interesting to merge with APS does wit...
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[quote user="drdna"]Now fully five years after the original PP2000 was in my system, then subsequently stopped working and was sent back for repairs to the manufacturer. An unfortunate series of events involving the Chinese subcontractor resulted in ...
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Last week since the PP2000 did not work I was trying to put the Dima’s Avicenna Regenerator together. It did not sound right even in it’s best time but at least I have full control over it and I can do something with it. The reason the Avicenna R...
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I set two multicells with LF-enabled S3 drivers. I set them on the outer side of Macondo MF. Playing with crossover, volume and towing of the multicells I was able to a degree to get the effect that would like to get. The pointing the multicell...
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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="drdna"] So what are the effects of good electricity of the PP2000? It may be a good idea to look at the frequency response and harmonic distortion of the system to see if filters in the Macondo speaker system may need to be adjusted now ...
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[quote user="Paul S"]"Success" equals better except for added hum?[/quote] Well, I am sure I can get rid of the hum, so then it will be all good. In fact, I know I can do that just be unplugging the PP2000. That is not an optimal solution of course.
...
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Here are some shots of what the this new unit does. This is the wave right out of the wall. Boston’s South End.
This is the PP2000 with 30% load running plugged into the wall
This is the same as above only the full wave. Note the non-symmetric sh...
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I played the full system today driven from Avicenna possessor. It was interesting and in way different. The full system (Milq + digital front ends) draw 685W from Avicenna in buffer mode and 800W from the wall, so the efficiency was very good f...
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[quote user="Canuck"]Romy Have you ever tried a PUREPOWER device feeding something like the Torus RM20 which has a huge transformer and then out to the components? The Torus stores a lot of energy in those huge transformers. Do you feel this ...
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[quote user="Romy the Cat"]Rakesh, Equi=Tech is a know player in the fields of audio electricity. Back in 2001-2002 I had 3 of the Equi=Tech transformers. I was not pleased with results. I do not like the balanced operation for power lines – in my vi...
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We have long spoken of the "electrical" event as something that is +/- "routed" by cables rather than being "contained" by the cables.Whatever the "source" or "nature" of the electricity, the gear does use it. Sometimes "conditions favor electricity...
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[quote user="Jorge"]"I do not know where we go from here. I have some clear ideas and some very specific experiments that need to be done with PP2000 but I would like the test were endorsed and underwritten by PurePower""I have a number of very serio...
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Now fully five years after the original PP2000 was in my system, then subsequently stopped working and was sent back for repairs to the manufacturer. An unfortunate series of events involving the Chinese subcontractor resulted in the company contract...
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I am wondering what in configuration of m room was changed that made me do not like Sound. Here are the factors that I consider might be the reason. 1) Obvious change the floor. I however do not think that it is the reasons as at my new hardwood...
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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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Bill, what I find interesting is not the fact that the units vary one from the other in terms of measured performance, or each in its (in)ability to charge its own battery, rather I notice that you seem "happy" with the performance of all the units i...
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[quote user="Romy the Cat"][quote user="drdna"] It has the Magnequest DS-025 OPT, connected to the 16 ohm tap. [/quote]
So, it is 2.5K primary and you drive 8R speaker with 16R tap. That makes the 2A3 loaded in your case with 1750R. I think it is ne...
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I am not sure how much time I will have coming week to experiment with audio but if I do then here is what I would like mote have done. This week PurePower will return my second PP2000, presumably fixed. If this new unit sounds identical to my curre...
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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 did not modified it ...
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[quote user="drdna"] I am quite sure it is a ground issue, as it is noise coming from the loudspeakers regardless of source or volume. Lifting the grounds on the amplifiers… eliminates the problem. [/quote] If it so them there is no need to contact t...
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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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