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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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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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[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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[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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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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Last year I had the chance to listen to the Vitus SP-102 Phono Stage. When I remember right, it was ok, some of the better modern Phono Designs. It wasn't as thin and dead as Pass Phono for example, but it was also not able to go out of the way in re...
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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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[quote user="Romy the Cat"]Those 3 new units had huge between butteries and AC.[/quote]I don't really want to share my thoughts on the sound of the PP2000 until my dedicated circiut is in place. But I will say that fed from my current utility line, t...
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[quote user="kodomo"]the faint grunge I hear from the upper mid and treble ... It is an audible noise, it kind of buzzes...[/quote]Yes, that describes it. This is THE characteristic noise when there is a defect in the Pure Power unit. As far as I kno...
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Romy, My unit went dead. I should note I have one of the old pre-move models. I brought it into my customary repair shop and they identified the battery and a small wire as the issue. They replaced them and the unit sounds better than ever or at leas...
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[quote user="TonyB"]The differences between the battery operation and AC operation are to be expected.One case is isolated (hopefully) from AC, the other case is not. If anybody thinks otherwise,they are fooling themselves. [/quote] Tony, the fact is...
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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="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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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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[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="Romy the Cat"]the “sound” of these oscillators/inverters is something
that describes the sound of electricity. Tesla for sure would make great batteries
but I do not think that they would case to make oscillators “good for sound”.[/quo...
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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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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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I touched on local electricity problems in a recent electricity post. Briefly, the local nuclear plant has been shut down by concerned politicians after "leaks" were detected. Setting aside mutated flora and fauna, sound has been worse more of the ...
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It is worth making the point that new technology such as Lithium iron phosphate batteries has changed the game when it comes to running digital. These things have no memory, do not suffer from staying charged, and have really very acceptable energy d...
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Not sure now what the problem with battery power was earlier. It might have been a tiny dab of solder on the input adaptor. .. Whatever it was, it's gone now, and I am back to battery power!Basically, the recent mod makes far better sense with batt...
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The original Odyssey PC625 battery I used for my DAC finally crapped out, a couple of months ago. This means it worked when I wanted it to for 12 1/2 years. Not bad, I think, and this even though it mostly just sat there, doing nothing, since I usual...
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For people who are waiting for Tesla PowerWall, an alternative: http://sonnen-batterie.com...
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