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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Of course, all the mfgs. claim their AC regenerators and correctors put out perfectly shaped, perfectly clean sine waves, and they also say that this is why their devices "work" (and never mind if they don't actually work...). But people who use...
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I guess I needed to say that, outright. Of course I do care about seamless power during line lapses, but not much. I mainly see the battery as a "treated", high-current DC reservoir/source for converting to laundered AC. And, like I have said many...
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[quote user="Paul S"]It surprises me if you wish to do away with the battery. Or, perhaps a unit could be offered "less battery", which the purchaser/user could add on his/her own. This would "solve" the logistical problems (and the expense) of shchl...
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[quote user="steverino"] Sorry for the potentially ignorant question since I do not yet own one. Can't you remove the battery pack from the unit and see what the sound is like? According to the Pure Power web site the battery packs are optional so I ...
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More days came, with different electricity and it looks l like the PP2011 hold its stand – I did not detect a significant change in Sound so far. I gave a scoop plagued in the wall all time and I did not see so far a relation between the wave profile...
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[quote user="Lx_"] Indeed when the battery gets charged the sound is different from when it is charged. I have noticed this especially after the battery is discharged completely (after PP shuts itself down when running on battery). I think this i...
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The new battery got here and when I removed the charging and PS adapter harnesses from the old battery I noticed that the threaded positive post on the original battery is broken, inside the battery! I must have over tightened it after cleaning and r...
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I agree with your observations, and my own misgivings swirl around exactly the points you raise. In addition, I have tried battery phono stage and all it had to offer was quieter "background", everything else was worse, despite the wild and exo...
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True enough, Romy, and who knows, there might be a day or a late night when it sounds no different or even better with the wall power. Meantime, there is just no down side to using the battery for the iDAT-44+, despite my bad experience with th...
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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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[quote user="Romy the Cat"]... if it cost nothing to you and if you initially wanted to try PP3000+ then I do not know how that misfortune you had did changed your mind.[/quote]Well let's just say that I find the retailer's version of events difficul...
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[quote user="manisandher"]I'm happy to compare the new PP+3000 to my old PP2000 and share my findings.[/quote]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 G...
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[quote user="Lx_"] Indeed when the battery gets charged the sound is different from when it is charged. I have noticed this especially after the battery is discharged completely (after PP shuts itself down when running on battery). I think this i...
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Romy says "
I do feel that enter charging circuitry is the biggest liability of PurePower unit...
It would be a hideous discovery if it turns out that the PurePower unit sounds so good…. because the distortions f...
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[quote user="Paul S"]It surprises me if you wish to do away with the battery. Or, perhaps a unit could be offered "less battery", which the purchaser/user could add on his/her own. This would "solve" the logistical problems (and the expense) of shchl...
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It surprises me if you wish to do away with the battery. Or, perhaps a unit could be offered "less battery", which the purchaser/user could add on his/her own. This would "solve" the logistical problems (and the expense) of shchlepping batteries, a...
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Remind you that in properly operating PP it shall not be negligible difference if the unit run from battery or from wall outlet. Sine I do not know why PP sound as good as it is (when it works properly) I can only speculate what the presenc...
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I have pretty well convinced myself that it is important to have a battery as an "active" element between the up and down converters. Of course, the PS units do without this, though I have not tried the newer ones in my own system. Obviously, a big,...
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[quote user="PurePower"]The obvious corollary of this statement is that if he can hear sonic effects in his music system that are directly correlated to appliance turn on, then his PurePower unit is almost certainly not operating normally.[/quote] We...
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[quote user="manisandher"] Also, when I switch from AC to battery, the output voltage (as measured by a true RMS voltmeter) INCREASES by between 3-4V. Now, I am NOT suggesting that this increase in voltage is causing the difference in SQ. However...
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[quote user="manisandher"]Well, I beg to differ.There is a HUGE difference in SQ between AC and battery with my new 230V model. The AC is edgy and sharp (pretty much unlistenable) whilst the battery is smooth and harmonically rich.[/quote]I can only ...
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[quote user="Romy the Cat"]The recent LX’s posts made me to think about the PP2000 buttery. He reports that his buttery got way weaken from 2009. I used my older PP2000 from December 2008 and my currant problematic “upgraded” problematic PP2000 used ...
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[quote user="Lx_"] I do not remember seeing you provide details about this. Could you elaborate on how sound is affected by AC in your system? [/quote]
Lx, I shut fown my playback in beginning of April, before move, and then got more or less o...
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I certainly have my hands full with those dams PP2000. As I least last night UPS lost one of my units I send to PurePower to repair. The shipment was insured but the saddest part is that it was the best sounding PP2000 of mine. So, I will not be get...
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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 discard as “bad” attribute of sound ...
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[quote user="Romy the Cat"]In my estimation our playbacks running from averages electricity I have here in Boston operates at 3-5% of abstract sonic quality scale. Use of the devises like PP2000 moves the “quality” to perhaps no more then 10-15%. How...
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perhaps you need a rig like this to run things from[IMG]http://i75.photobucket.com/albums/i318/murrayjohnson/Picture073.jpg[/IMG]...
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Mats, believe me, I'd love to get off the frickin' grid altogether. But if I'm looking at >20 car batteries just for the K&K phono stage, then how many angels will fit on the head of a pin? Ironically, the K&K also uses JFETs.....
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Hello i was told by the shop that sold me my pp2000 that the unit was not designed for battery back up in normal operation. That battery back up was added only for cases of power lost. Ive had that happen only once in the time ive used the unit. Now ...
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The PurePower batteries provide power to the AC regeneration whenever it is required. That could be during a black out, it could be during a brownout, it could be for a fraction of a cycle it could be for 10 minutes. The simple fact is the incoming U...
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