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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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For people who are waiting for Tesla PowerWall, an alternative: http://sonnen-batterie.com...
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I meant this scheme. Have the converter start at 105v when turned on and increase to 120v as a nice soft start for the tubes perhaps. Anything is possible with such a set up. I do think that audio is/will benefit greatly from all the technological pu...
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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"]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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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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Romy:You may in the meantime build your own battery pack to increase the playtime you get from batteries. When I last spoke to PurePower (I placed an order for a PP2000 in another life and then cancelled the order), I asked whether they would pro...
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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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Hey Bud,Are you saying that the battery materials are less limited in fast dynamic potential energy release than the capacitor materials? I thought batteries had far greater materials limitations compared to capacitors in regards to fast potential re...
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Like I said above, I planned from the start to try battery power just because John Wright recommended it, and it seemed like up to that point we were talking the same language, which was borne out when i listened to the unit as I received it.&nb...
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[quote user="manisandher"] …. the PP2000s battery output is clearly superior to its regenerator output… [/quote]
And if it is true then the PurePower people did already fuck up their own product. The battery output and output from AC SHALL BE...
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Et Voila! Perfect sound forever.I am ready for a subwoofer sized battery pack by the house electrical service feeding the audio dedicated lines. Whats wrong with this solution? It doesn't exist yet? Heck, $15k in the grand scheme of things...Steve...
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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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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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[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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Is there any body who used Flywheel power to supply UPS/Inverter?https://www.piller.com/en-GB/183/energy-storage...
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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="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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I would like to offers some thoughts about possible avenues for Pure Power 2000 improvements. Those thoughts are no specific to the recent November-December events and have broader generic implication. I initially intended to write it to Pure Po...
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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.The first question to ask is to MAKE SURE that ...
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It is interesting that PP3000 effect of the “deeper” MF cleaning is very much reminds the effect of going from an empty room live room to a much better acoustically treated room.Anyhow, now I would like to talk a bit about stability of the effect. I ...
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You are eating the best food in the world and then complaining that the salt doesn't taste right. Well I simply point you a way to a lifetime supply of the best Dead Sea Salt.This is an exceedingly practical solution to your problem. And a variation ...
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I have modified my system to make sure it has a single dependency on AC. Until now, everything was plugged to PP except one regulated PS for the PC feeding the DAC. This PS in not on PP because it generates lots of noise, and plugging it to PP inject...
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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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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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[quote user="Lx_"]If the 2000 output is really clean of any noise and only the ground carries whatever comes from the house ground, then how do you explain the tremendous sound improvement that lifting the input ground provides? I find it difficult t...
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It is true that a given battery will have "special" requirements for optimal charging. Also, where the battery is in a circuit and the specific demands of use can influence how and/or how quickly it "wants to be charged", not to mention different ba...
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[quote user="Romy the Cat"]What I detected is that when the PP3000 starts and begin to charge the battery then it has very slightly different sound then what the battery is completely charged. This is acid battery as it always being charged but appar...
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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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Like I said above, I planned from the start to try battery power just because John Wright recommended it, and it seemed like up to that point we were talking the same language, which was borne out when i listened to the unit as I received it.&nb...
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