Bill wrote:

Remove the battery pack. Should lighten it considerably.

It is mean rainy day today in Boston and I’ve been playing with my new PurePower 3000 regenerator. It has been a bit bumpy as there was a frustrating issue, that looks like a shipping damage, the PurePower guys promise to fix it.
My initial sentiment from yesterday was that PurePower 3000 has a different sound then PurePower 2000 only got more conformation and more evidence today. In short: PurePower 3000 do sound better then PurePower 2000, in fact it even measured better than PP2000. If I were an industry-plugged reviewer then I would try to convince you to sell PP2000 and to get PP3000, I am sure the PurePower people would love it. However, since I do not give damn what you buy or use you need to understand that my comments only about sonic differences I observe. Furthermore, I am not sure that the sonic advantages of PP3000 are because it is “better”. I comment upon the observable differences, hot to interpreted those differences is a bit more complicated subject. I not always have the explanation to myself, if you do than good for you, share them with me and I will tell you why you are wrong.

1) PP3000 is heavier than PP2000, looks like the same side and looks like not much heavier in specification but it is much more pain in ass to move it.

2) PP3000 has more noise from fans than PP2000.  It is “fanyer” sort of speaking. It is absolutely not bother me as my PP3000 sits good 25 feet away from my listening position. If it was sitting right next to my chair with 3-5 feet then it might be an issue I guess. I think it is because the fans in the unit are sucking intake air right from the holes atop the front panel. If PurePower would put one surface between the fan and hole, creating sort of labyrinth for incoming air then it would kill the noise significantly.  Nevertheless, the severity of the noise is not too critical and if the unit good 10 feet away then it is not a problem at all.

3) The signature of PurePower “fuzziness” atop of the sinusoid that that I been reporting on all PurePower unit is there but it measured the best that any another PurePower unit I had. The amplitude and the spread of the fuzziness is very consistent, lower than with any other PurePower unit I measured it and the most important the it is practically identical between unit runs on battery or from power lines. None of the former multiple PP1050, PP2000 that I experimented with did not have this last characteristic.

4) DC offset adjustment. PurePower still use that ridiculously-manuals DC offset destroyer that I very much disagree with them. However, it looks like it works with PP3000 better then with PP2000.  With PP3000 in the best DC offset setting I get lower noise in my toroids then I had with the best setting using PP2000. With both of them I have them practically silent but with PP3000 this definition of silence is literal. You need to understand that level of my anal-retentiveness and demands is much higher than any normal person would demand. I do not even measure DC. I usually take doctor stethoscope and press it against the toroid that feeds Melquiades amps with B+ for output tube. Then I spin the DC offset on regenerator unit I have minimum noise in stethoscope. With PP2000 I had very fine residual noise (not in room but in stethoscope). With PP3000 I have practically no noise at all (in stethoscope!)

5) With all playback driven from PP2000 the regenerator meter shows 96% load.  With PP3000 it shows 55% load.  Frankly I think this factor might be responsible for most of not all sonic differences that I see between the PP2000 and PP3000. If so then I would like to see the PP5000….

6) Ok, the first half elephant in the room – the dynamics. Believe me or not but PP3000 is more dynamic then PP2000. It was very sensible from the very first note that I heard from the PP3000.  I do not know what to say else about it.

7) The second half elephant in the room – dynamics is that PP3000 looks like provided even further HF attenuation. The upper MF aggressiveness, characteristic for electricity, looks like with PP3000 subdued deeper.  I would say I can run my MF and my tweeters harder with PP3000 to get the same level of comfort. I would say that I can do 1/3dB at MF and one full dB on tweeters. This is very good and it is an indication of PP3000 advantage. IT is very much might be due to the fact the I do not load PP3000 as much as I would do with PP2000 – with the same load but at near full capacity the PP2000 I am sure output more distortions then PP3000 at half capacity.

8) PP3000, probably because more HF attenuation, exposes more texture in sounds.  This is what I did not expected.

9) PP3000 it looks like have slightly “flatter” imaging.  I mead the depth and the complexity of imaging is there but it is a bit more “depth compressed”.  I am still looking in this and will play with it. It might be some fine aspect of grounding or something like this will see. The effect is very mind but I think worth to mention.

Romy the Cat wrote:

PP3000, probably because more HF attenuation, exposes more texture in sounds.  This is what I did not expect.

Yes, it is. Now we are getting somewhere! Those “exposition more texture in sounds” turn out to be a bit tricky. I spend 3 hours to experiment with it, thinking about it, make some adjustments, listening and thinking about it again. It is not so simple. The PP3000 did clear up MF deeper then PP2000 did but at the same time it gave some coloration, texture coloration. It is very minor and it is very attractive but it is not what I would like to have. I would like texture to be dictated by source not to be overridden by my playback. This was not regular texture coloration but very insignificant upper MF texture coloration; I do not expect most of the people dealt with it as to moderate it possible only in context of active multi-way. In my experience I saw it only during my tuning of Injection channel when I converted color of Injection channel into texture of MF. So, I recognized that with new cleaner MM I can take my MF out of it “protection mode” and to run is slightly different.  Playing with Injection level, the MF level and the HF level I found a VERY interesting configuration that is in the same time neutral and spectacular. In a way I can get now the immediacy and nuances of MF from my 12F that I was able to get in my old room from 7 feet. It is not more aggressive but rather more presentable.  I was not able to get it in my new home and I was kind of blaming the larger and relatively live room. Well, now it is different.

The MF now are very smart. They are very powerful in term of showing themselves of but they stop posturing exactly where they need to be stopped. Ironically to do it I need 3 MF channels, 3 amps and one PP3000.  I am locking this configuration of my MF channels and my new default.

Romy the Cat wrote:

6) Ok, the first half elephant in the room – the dynamics. Believe me or not but PP3000 is more dynamic then PP2000. It was very sensible from the very first note that I heard from the PP3000.  I do not know what to say else about it. 7) The second half elephant in the room – dynamics is that PP3000 looks like provided even further HF attenuation. The upper MF aggressiveness, characteristic for electricity, looks like with PP3000 subdued deeper.  I would say I can run my MF and my tweeters harder with PP3000 to get the same level of comfort. I would say that I can do 1/3dB at MF and one full dB on tweeters. This is very good and it is an indication of PP3000 advantage. IT is very much might be due to the fact the I do not load PP3000 as much as I would do with PP2000 – with the same load but at near full capacity the PP2000 I am sure output more distortions then PP3000 at half capacity. 8) PP3000, probably because more HF attenuation, exposes more texture in sounds.  This is what I did not expected.

Romy the Cat wrote:

I have absolute no knowledge if PP3000 or any other audio devise might or not might not be ”perfect for your system”. If you need a sales person why would butter you with subliminal messages and promise assured place in have is you but this or that devise then I would suggest you to find another forum to ask those questions.  I do not provide any consulting about purchasing decision and I very much do not give shit what you or any other person buy. I hope my brisk attitude eliminate any follow us questions of that sort. The Cat

Biggy wrote:

You force me to say that you are really rude person , or at least you make an effort to be so . Do you really think I'm so stupid to want a line filter which costs $ 5000 only "to reduce high frequencies " ? The electrical line in my houseis terrible(all outlets connected to each other, the last one giving power to my audio system), the dishwasher or washing machine or dryer or vacuum cleaner or oven are always running; for this reason often blackouts occur, with possible damage. When in summer I switch on the air conditioner I hear a "click" from the speakers; when someone activates the the elevator I hear an annoying hiss in the left channel. I listen with pleasure usually after 11p.m. ; in the morning system is more "harsh" than in the night. FOR THESE REASONS I believe that the "excess of high frequencies" may be due to poor electricity, and that thePurePower3000, according to what YOU said ("it reduces the high frequencies of 1dB") I thought it might be a possible final solution to my problems (even aware that the excess of high frequencies could be due to 1000 things,:the type of speakers, not all the cables broken in, early reflections in the listening room, etc..) Maybe I will do my home work and educate myself with my problems, but if you continue todo "the master" this way, without educating yourself to understand how to live in peace and armony with other people, I think you'll continue to post on your forum alone.

Biggy wrote:

I listen with pleasure usually after 11p.m. ; in the morning system is more "harsh" than in the night.

joaco wrote:

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 to use dc from 24 ( 2 x12v)  volt batteri and listen to changes , i now assume dc from that battery is like very pure electricity from ac , regardless of what element one need to purify it . So it is not just the noise that become quieter , the istruments feels different , feels like they are tuned now . So i was wondering that pp working from battery might have the same effect , or similar effect and when connected to ac , noise must become part of the circuit somewhere . Anyway I will build another power supply , this time with a much larger capacitance to see if theres some effect with same voltage but much more capacitance . It seems very difficult now to feel the instruments the way they feel with dc . I think lower level (little signals) are very sensitive to noise and one must take care from the lower level signal up to the amplifier , i do not know what effect may have pp when connected to ac in the lower level signal