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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy, from the anicdotes peppering this forum, it sounds like you have "done your homework" prior to choosing someone to share your life with, and you have done this at a time when you, at least, have already acquired some life experience. No doubt ...
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Dear Romy, regarding your efforts to solve variations in mains power supply, there has been an interesting thread on RAT related to the use of toroids as power transformers that morphed into a discussion about the level of DC offset in mains power su...
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At this point I am absolutely confident the there is difference in Sound between the properly sounding PP2000 that I had before and the “new” version of PP2000. Let juts for sake of illustration I will call it PP2011. The PP2011 is better soundin...
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[quote user="Romy the Cat"]
It was an interning event last night. The sound turned incredibly bad from electricity perspective. I did not have anything like this for a year or so it was very bad and it was clearly electrical. The PP2000 was workin...
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Romy, thanks for the info on the chokes in the fullrange Milq.Today I have ordered more Milq parts this time for the power sequencing and bleed down. I decided to go for the relay sequenced bleeders for all four power supplies and figured I would be...
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When I use Pure Power then I hear no noise/buzz from Big transformers of Power amplifier.It seemd Pure Power 3000 blocks DC .I have no device for measuring DC voltage of AC line.I did not use any DC blocker before Pure Power and I have no idea about ...
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Ok, it is a lot of information on my plate and I am trying to make sense of it. Below I will share my observations about the new Pure Power 3000+.
The first thing first. In the post I made a few days back:
http://www.GoodSoundClub.c...
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All below is written by Thomas Dunker
Yeah, "sound consistent independent of signal level" is a very precise way to sum up my whole speaker philosophy. Anything that is assumed to be constant, but which actually changes with signal dynamics is what ...
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[quote user="rowuk"]Do we simply not want a non-changing target? As regeneration does not seem to be „the“ solution (especially if the AC cord behind the regenerator changes bass), what does better AC even mean?Perhaps the designers of great equipmen...
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I am sorry I do not want to pollute the PP2000 thread with battery options.Right now I am in the process of testing a lot of different comercial amps to see what I will stay with, or which route I will be taking with my system in the near future for ...
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To keep with Romy's spirit of sharing his work, I have attached a file of VER 1.0 of the DSET Power Supply. There are quite a few differences to Romy's published schematics but it is basically the same beast. You will notice a lot of power transfor...
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I think we're on the same path... maybe from opposite directions. I agree that if one can identify multiple devices that provide clean power without impacting the sound quality then thru some level of analysis one could hope to determine what f...
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Paul Excuse me for off-topic , I also have high power solidstate amplifier and I have some experience with high power solidstate amplifiers.Actually very few high power solidstate/Hybrid amplifiers are good and most of them are not ok.The problem is ...
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This is very ugly topic as I have been looking a solution for years and I do not have a consensus with myself regarding this. I have 21 AC power consumers in my playback. Well, the 21 that require good power, another 8 might be plugged to the utility...
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The failure Herman had was probably on the input side - not the output. You will notice 2 things. 1. The system operated normally for 6 months, so it is unlikely an overload issue.2. The PurePower did its job of protecting the audio equipment (self s...
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Romy,I already send money to Pieter for OTP transformers. Now I need power transformers and chokes.This is Pieter propose: (He look at the schema)2 x power supply transformer - 12,6V/5A - 6,3V/1A2 x ...
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Power from the company grid is usually pretty decent in most respects, or at least it used to be. In the last 25 years or so the average home has seen an increasing number of devices which have switching power supplies (computers, monitors, etc...
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Amir, I told of my own approach to wall power in other threads. Basically, I tried to make my gear as tolerant of AC variations as I could without simply smoothing everything over. My DAC runs on battery power. I modified the power supply and changed...
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[quote user="Romy the Cat"]First of all, if you have
multiple of PP3000 then be advices that them connected in parallel substantially
descries sound quality for each of them. Then might be use ONLY at different
phases of some measures should be ta...
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I will be making another experiment tomorrow and will try to install a new dedicated power line for audio. I say “another experiment” as the dedicated line that I installed as soon I move into the hour did not sound good, I have no idea why.
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Amir, I told of my own approach to wall power in other threads. Basically, I tried to make my gear as tolerant of AC variations as I could without simply smoothing everything over. My DAC runs on battery power. I modified the power supply and changed...
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After more than 20 years of playing audio game I think only two things are real game changers. DPOLS and Good AC qualityI do not claim I listened to Wilson Speaker in DPOLS but I am sure it was near DPOLS 14 years ago. I remember for the first time...
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Please, have some fun. First download the white paper to see what the patent artists came up with. It is essentially correct but not to scale.
Note that it requires 18 offset sets of blocks around the periphery of a cone. About two degrees of space ...
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ya that’s likely where the truth goes. I had it once with electrostatics. Theyre most bitchy in regards of correct positioning in the room as we all know. They’re a lifetime task to find DPOLS. I tried to move around and found huge difference. Some c...
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Floyd,
Regardless your preamp uses output coupling cap you would still need a positive supply. Positive supply compensates the negative DC voltage at the amp’s input. Theoretically if you do not connect or disconnect the cable between your preamp an...
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[quote user="Michaelz"]Does this mean one may one day get free power from the neighbors?[/quote]Well, I think it means much more tight dependency from the grid, much more complexity for grid decoupling, not to mention a much higher cancer rate… I wou...
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[quote user="Romy the Cat"]If you consider APS PurePower as just a power treating or regenerating devise then I feel that the whole “kinky” point of this devise might be missed. We get horrible sound with bad electricity and we are accusto...
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Dear Romy,The UPS units are being used in their normal way, as line interactive. The voltage waveform supplied by the Powerware 5115 is a sine wave. This is described briefly in the manual and was important information for me pre-pur...
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Peter, I wish I had more confidence in the amp's power supply as significant proof against the full range of AC power nasties. In fact, I have long had the sense that there is such a thing as "over-regulation" where hi-fi power suppli...
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Hi Romy,
I haven't read this entire huge thread, so pardon my intrusion. I was wondering if you have tried to regenerate 120v by turning a motor by the shaft of another motor. We use that little trick in the commercial electric industry to generat...
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