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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy,Try wrapping a copper wire around a power cable, then "inject" it into the power line through an isolation transformer. The wrapping only to help defeat the antenna event of other signal sources that only have one vector.et all,For cables, the m...
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Dear Romy, I'm not surprised at your disappointing results as I have experienced the same with a variety of power filtration or generating devices. Your surmise is correct that such devices work much more easily with AV equipment or computers than t...
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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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First, Adrian, Thanks for your feedback on the newer designed 2A3 tubes... very interesting. I've looked at all 3 of these brands before but have not as of yet purchased any (I have a large collection of 45 and 2A3 of various NOS US brands...
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So, what you would have to do is buy a bunch of #9 AWG solid copper wire from China, so it is only 99% pure,acid etch the surface, paint it with tar and wind it up in a snake sex twist. Or pay them to do it for you.The idea is sound, the application ...
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Hello all , i know this topic is almost about pp experience but since im experimenting with electricity i like to share some thoughts here . I builded a dac using very high quality components . As you know the power supply is critical . So i decided ...
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[quote user="Romy the Cat"]I made the 543rd remodeling on the Opera room and move the video playback equipment to the new, I hope the last location. As I connected everything into PP2000 as it use to be (not PP2000+) but older not “Plus” version than...
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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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It certainly seems that once sinusoidal shape gets within a certain spec range its differential effect becomes negligible. This doesn't necessarily mean that more drastic deviation of sinusoidal shape would be inaudible.The only other factors I can...
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CJ Yes I have assessed AC polarity in my system.Romy says "I took today my large
3kW isolation transformer and place it between my dedicated line and
PP3000. I lost my lower bass, simple as that. "Speaking of isolation transformers, I have not h...
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Yes , romy I understand completely about how you feel with dc i feel the same way when thinking on all my system , to put dc on an amp , directly can be great but not practical , will requiere lot of space , a big battery bank etc etc , so not practi...
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Jarek, please re-read my previous post, also Romy's recent post on this subject, carefully. I'm afraid you are in for it once you start effing with power cords, for all the reasons we've listed. Here in the US we have a company that sells used cord...
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My own playback is not operational from PurePower for now but last night I visited a local audio guy who run him playback from two new PurePower+ units (right and left channels) and one old PurePower (LF section). It was very fine sound, probably the...
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I think there is a definate trend here regarding distortions that cannot be ignored. Guy, you pointed out some excessive 2nd order harmonics with the Melq bias point. Hey, maybe so. I haven't really looked into this tube - but I jus...
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Hard to say for sure where all the trouble reported with regenerators comes from, but I absolutely agree that the opportunity is still there to make a simple and straight-forward success of a model (not just one example...) that actually consistently...
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I saw this topic and it prompted me to register and reply, rather than just read, which I've been doing on and off for years now.
While I would love to have the time, space and patience for ...
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Romy said "then I would
do my version of CES stunt.During the first 3 days what the show is close to public walk around the room and offer the PurePower units to loan for free.. The people at the show do not know that
with PP3000 the sound they d...
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[quote user="Paul S"]Joaco, all this will probably be moved back to the "Electricity" thread, which is not really an APS Forum, as it has appeared for a while, now.
Paul[/quote]Yes , I made a mistake ... it will be much better in the Electricity thr...
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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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I thought I would look at the Memory Player specs and was surprised to be greeted by what is in my books an obscene price list. But it may be quite cheap for others. These things are all relative of course.Best regardsRakeshThe Memory Player 64 T...
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[quote user="N-set"]IIRC, Viborg uses what they call red copper, which is probably red brass - a high Cu content brass, quite a bit harder than pure Cu. Visually and under a few strokes of a metal saw (I wanted to check if this is not a plating) beha...
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[quote user="Lx_"] Well, this is consistent with the behavior I have. I can hear electrical devices behind the PP, especially those of the switching PS type: computer screen, laptop charger, DSL box, printer, SAT decoder... Good luck finding electron...
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[quote user="PurePower"]I'm happy that I found out about LX_'s problem in France with his PurePower 2000 230 volt model. I'm sorry we had to hear about it on Romy's forum so long after the fact because his problems would have been solved long ago. Un...
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I never heard people shunted battery with caps in order to change sound. In case of battery power unit it does not make sense as there is no HF noise some in the picture. Yes, battery has own noise but it usually no where hear what the audio circuitr...
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I like your comment about LF being too dry and this not being because room is untreated.In the past, I have tried to "wet up" sound by making room more reflective ("live") and I am guessing that your room is fairly live now as untreated rooms usually...
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There was a cool Russian-made tube GU-48. It is high-gain, high power pure direct heated triode with 300W on plate and 10A on carbonized tungsten cathode. I did not hear but it looks like something in the class of RCA 833 tubes. I think Japanese sel...
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Romy, I don't think we're in any major disagreement. It's clear you have a good operating point and performance indicates this as well. I did a "normalized" model of this with the 2A3 and 45 and it specs well. All I'm suggesting is that all early an...
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[quote user="Romy the Cat"]So, you feel that high voltage filedcoil do excite the electromagnets driver somehow?[/quote]I will not call this exitation, let say it dynamic stability.[quote user="Romy the Cat"]What voltage you feel is appropriate?[/quo...
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PaulI have listened to some friends systems in their home from morning to night and the AC quality was also variable accross the time but overally my AC quality was worse in comparison by my friends home.In Iran the new year holiday is 21 March - 2 A...
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[quote user="steverino"] I'm not surprised at your disappointing results as I have experienced the same with a variety of power filtration or generating devices. Your surmise is correct that such devices work much more easily with AV equipment or com...
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