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  »  New  What lives in Symmetric Sound?..  The beginning of our journey is ALWAYS symmetrical...  Audio Discussions  Forum     19  108308  05-28-2004
  »  New  Always check power-line polarity...  Polarity checker, for convenience...  Audio For Dummies ™  Forum     7  65469  07-10-2005
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  »  New  Musique Concrete horns..  Electricity and different compression drivers’ diaphrag...  Horn-Loaded Speakers Forum     5  71991  06-12-2007
  »  New  Compression drivers and the “clean signal”...  The NEW “Compression drivers and the clean signal”....  Horn-Loaded Speakers Forum     14  106108  07-12-2007
  »  New  Digi Redux; Drive 1 transport and iDAT-44+ DAC..  The Sound Obsessive List of DACs/Chips...  Didital Things  Forum     23  136556  09-28-2007
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  »  New  The power AC Outlets?..  Where to Pick Up the Gong?...  Audio Discussions  Forum     2  28844  10-31-2008
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  »  New  Internet and electricity..  Suboptimal. . ....  Didital Things  Forum     1  16207  01-07-2010
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  »  New  Another example of energy..  The Odd Good Day!...  Audio Discussions  Forum     1590  5912282  01-29-2011
  »  New  I good spot-light for a turntable?..  Reply...  Analog Playback Forum     15  97138  10-24-2010
07-18-2017 Post does not mapped to Knowledge Tree
xandcg


Rio de Janeiro, BR.
Posts 161
Joined on 09-07-2014

Post #: 1581
Post ID: 23332
Reply to: 23330
I do agree.
I think I mentioned before for the price of a Stromtank  one can probably get two huge (datacenter level) EATON UPS (or a large extra battery pack) with theoretical output of <1% THD on linear loads - with enough power to driver the entire house, inclusive.

I quick look on battery prices show those type of batteries they use costs around U$210 each. I do not know if the one I saw is a "good" one but...

My personal interest in batteries is related with the fact I would prefer to have controlled power instead of a total random one - specially if living in a place with unreliable power supply or a very dense and noisy one. However it still would need to have something low impedance later - probably a isolation transformer.

Cheers!

EDIT: anyway, it would be interesting o know what batteries, or even the total solution, the Living Voice guy use.



Think for yourself, do not be sheep.
08-04-2017 Post does not mapped to Knowledge Tree
ArmAlex
Iran
Posts 80
Joined on 02-15-2009

Post #: 1582
Post ID: 23355
Reply to: 21787
Wait is over!
I finally got my hands on PP 3000+. Romy was right wait was worth it.  I already have a dedicated power line for my system with a proper earth and I'm using Purist Audio design power cords. But improvement with PP is dramatic. In my opinion it makes kind of improvement to sound that is not possible to achieve with any other change/upgrade in components. It improves the dynamic range and at the same time lowering sound floor which makes listening experience quiet different and pleasing.
Armen
08-05-2017 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,495
Joined on 05-28-2004

Post #: 1583
Post ID: 23356
Reply to: 23355
Yep, it is so good....
 
 ArmAlex wrote:
In my opinion it makes kind of improvement to sound that is not possible to achieve with any other change/upgrade in components.

I have a very same feeling. At this point I do not think that is has anything to do electricity after all. It rather has to do that it somehow preconditions power supplies of whatever you use, making the power supplies to sound better. I had spectacular electricity ways with now so perfect sinusoid and a lot of distortions in my older listening room. At my current listening room, I do not have a very good feed from grid (400A) and a dedicated line. The town is way outside or any civilization. We have no commercial properties in the whole town, not even a gas station. The quality of electricity in here is very good, still it is very distinctly different with and without the PP3000. As far as I concern these PP units are absolutely mandatory for any more or less pushy playback. Now, shall they be the PP units themselves of some kind of side-effect that the PP units produce? I do not know the answer. As the kids to grow up a little I think I will return to look into it.


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
08-06-2017 Post does not mapped to Knowledge Tree
ArmAlex
Iran
Posts 80
Joined on 02-15-2009

Post #: 1584
Post ID: 23357
Reply to: 23356
PP effect
At this point I do not think that is has anything to do electricity after all. Romy I meant despite having a "good/proper" power line PP effect is wonderful and irreplaceable. The quality of electricity in here is very good, still it is very distinctly different with and without the PP3000. I agree with you completely. Of course I'm very new to PP, it's just a week in my system but in this short time I feel there is a correlation between  power line quality and final sound. You were always mentioning to educate ourself about sound, I think PP is a very powerful tool in this respect. 
08-07-2017 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,130
Joined on 10-12-2006

Post #: 1585
Post ID: 23359
Reply to: 23357
The Care and Feeding of Conventional Power Supplies
Yes, Romy, the pictures of the PP's switch-generated output traces are very different from the direct, clean AC outlet output traces, all right.  But this is not the same as a switch mode power supply, since what PP promoters here are talking about is conventional power supplies fed by inverted, switch-generated AC.  On the face of it, all this seems to be too complicated by half.   On the other hand, users like what they hear from this elaborate set-up.  So, where does Ockham come in?


Paul S
03-24-2018 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,495
Joined on 05-28-2004

Post #: 1586
Post ID: 24765
Reply to: 2931
PS Audio new re-generator P20.
It looks like PS Audio release their new most powerful regenerator P20. It is 2KW, $10K and they sell it honestly: free in-home trial. As readers of my site know I am not a proponent of type regeneration that PS Audio does. The Class AB regeneration loos a lot in dynamic in transformer, filtration and a few other things. I do not know is it belong the Class AB regeneration topologically of it is specific to the PS Audio implementation. I had 5 Power plants and they worked questionably. It turned out the I am in Class D regeneration camp. Again, I do not know if it is topological or it is because the PP3000 specific implementation. Anyhow. It will be very interesting to compare the PP3000 vs the new P20.I am not the one who has interest to do it but I am the one who would like to hear about the result. Theoretically more powerful unit of Class AB regeneration should have advantage compare to less powerful Class AB regeneration unit. Still, I do not know if it will be enough to overcome the Class AB regeneration dynamic restriction compare to Class D regeneration.
   
Anyhow, I would like to pass a few comments about the new P20 that I am sure will be missed from “reviews” that will be coming over the next few years. The new P20 has a sexy display, on-board distortion analyzer and on-board oscilloscope. Unquestionably they are great future and something the I was advocating in past. Well, get it from the person who know a lot about usability of power regenerators and who spend many years to deal with sonic effect of bad electricity: these axillary futures are not necessary if the unit produce good sound. If you have a good regenerator that make comfortable to you sound then you plug it in and forget about it for years. All these sexy meters and distortion analyzers you need ONLY if the unit does not sound good. The only features the you need, and I can’t convince people to understand it, is a remote control that flip a regenerator in and out od bypass mode. The regenerators consume a lot of own power. The PS Audio are probably 50% efficient, the APS probably 80%. If you are not listening your playback and like most of audio people power some components all time then there is no need for you run your regenerator in regeneration mode, the bypass is totally sufficient. As you sit to least your system you punch a button, sending your regenerators in regeneration mode and it is all that a sensible regenerator should have. If you feel a need to look at big colorful display and to read the power distortion numbers then you do something wrong and you need to change ether regenerator or you hobby.


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
04-10-2018 Post does not mapped to Knowledge Tree
Amir
Iran
Posts 143
Joined on 02-11-2009

Post #: 1587
Post ID: 24798
Reply to: 24765
PurePower 3000
I listened to Purepower 3000 we finally got it in iran.



it is wonderful , new level of dynamics , far better than direct utility.
I have a question about pp3000 if you had it in a ultra transparent system.our system is not ultimate in transparency and I would like to know is there any hint of (very very very minor) hardness in sound of PP3000?I want to be sure those minor hardness is related to other thing like break-in or other parts of system.the pp3000 unit in our test was healthy with no ground loop problem of reported by drdna. it was absolute silent.the test was done by playing analog LP of some records like on every street.


I Love My Mom
04-11-2018 Post does not mapped to Knowledge Tree
drdna
San Francisco, California
Posts 488
Joined on 10-29-2005

Post #: 1588
Post ID: 24799
Reply to: 24798
Soft sound of pp3000
I have been living very happily with the PP3000 in my living room for a while now, and have had no problems with the new updated version that I finally received after a long effort with the company. Unlike the original unit with the odd internal ground loop, the new unit is silent in operation. I still suspect that some internal wiring issue of the old unit had caused it to fail, as I had tracked down the ground loop to within the device, as you may recall.

Anyway, the new PP3000 is completely silent and very reliable in operation. As expected, it provides stability and transparency to the system. I say it is like when the surface of the ocean water is completely still and you can see all the fish and ocean bottom clearly below. Without the PP3000, the ocean waves are there, kicking up sand and make it more difficult to see anything but murky shapes.

I personally have not noticed it adding any hardness to the sound. However, the ocean waves can be very exciting and sometimes you can confuse the lack of this added instability for hardness.

Adrian
04-11-2018 Post does not mapped to Knowledge Tree
Amir
Iran
Posts 143
Joined on 02-11-2009

Post #: 1589
Post ID: 24800
Reply to: 24799
New generation GOLD Edition
our pp3000 is also absolute silent with no issue. I should say I should replace "hardness" by "less relax in higher perception levels" as I guess it is due to break-in. 
this is new generation of Purepower 3000.
Image result for purepower gold Image result for purepower gold
It has some options : https://www.audioemotion.co.uk/purepower-2000-gold-series-reference-grade-ac-regenerator-880-p.asp
the battery lithium is an option.




I Love My Mom
04-12-2018 Post does not mapped to Knowledge Tree
xandcg


Rio de Janeiro, BR.
Posts 161
Joined on 09-07-2014

Post #: 1590
Post ID: 24805
Reply to: 24800
Isotek.
I really would like to hear from someone who has experience with PurePower and Isotek EVO3 Super Titan + EVO3 Genesis. But I guess that would not be a easy catch. Smile



Think for yourself, do not be sheep.
06-15-2018 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,130
Joined on 10-12-2006

Post #: 1591
Post ID: 24938
Reply to: 24805
The Odd Good Day!
Apparently it still happens: good electricity during the day.  Wifey went to the fair with a granddaughter, so I took full advantage!  If forced to guess why the electricity was good, I'd guess that the nearby school is out, kids are visiting relatives, and most adults are at work (no industry around here).  It's warm enough here today that the grid is pre-charged for air conditioners, but folks are still at work.  Anyway, focus was great for an original Angel LP of David Oistrakh, "Encores" (stereo), and Heifitz with Reiner/CSO, Brahms VC, original RCA "New Orthophonic" LP (mono).  My re-built cartridge actually tracks and sounds better than ever, and the work I did on the phono stage seems more and more like good idea.  I had loaned my TVC to Mark for a while.  His system is all balanced, so that's how he hooked it up.  Before I finally put it back in my system I re-cleaned and re-greased all the connections.  Nice!  I happen to have a giant power company transformer right at the southeast, front corner of my lot, but the difference when the school is out, and the grid is charged, and the ACs are off is still quite audible.  I think they've made up the current from the decommissioned nuclear plant, so the usual problem, I think, is the "digital interface", the "smart" aspect of the system that seems to keep the sound so it's generally neither terrible nor good.  But today was good, so who knows, it might be a Trend!  Anyway, its always good to feel hopeful about it.



Paul S
Page 80 of 80 (1,591 items) Select Pages:  « First ... « 76 77 78 79 80
   Target    Threads for related reading   Most recent post in related threads   Forum  Replies   Views   Started 
  »  New  What lives in Symmetric Sound?..  The beginning of our journey is ALWAYS symmetrical...  Audio Discussions  Forum     19  108308  05-28-2004
  »  New  Always check power-line polarity...  Polarity checker, for convenience...  Audio For Dummies ™  Forum     7  65469  07-10-2005
  »  New  RAAL “Water Drop” tweeter for Macondo...  Your comment takes me by surprise...  Horn-Loaded Speakers Forum     77  647107  02-16-2007
  »  New  My feelings about new exciting audio products..  Vacuumstate...  Audio Discussions  Forum     25  178097  04-30-2007
  »  New  Musique Concrete horns..  Electricity and different compression drivers’ diaphrag...  Horn-Loaded Speakers Forum     5  71991  06-12-2007
  »  New  Compression drivers and the “clean signal”...  The NEW “Compression drivers and the clean signal”....  Horn-Loaded Speakers Forum     14  106108  07-12-2007
  »  New  Digi Redux; Drive 1 transport and iDAT-44+ DAC..  The Sound Obsessive List of DACs/Chips...  Didital Things  Forum     23  136556  09-28-2007
  »  New  Metal domes..  Try the one Lansche is using...  Audio Discussions  Forum     6  50963  11-08-2007
  »  New  The power AC Outlets?..  Where to Pick Up the Gong?...  Audio Discussions  Forum     2  28844  10-31-2008
  »  New  The Avicenna's failure is the great Avicenna success!..  New life for Avicenna...  Audio Discussions  Forum     8  49971  02-03-2009
  »  New  Internet and electricity..  Suboptimal. . ....  Didital Things  Forum     1  16207  01-07-2010
  »  New  Electricity... power strips and ac improvements..  Electricity... power strips and ac improvements...  Audio Discussions  Forum     0  10871  03-30-2010
  »  New  Another example of energy..  The Odd Good Day!...  Audio Discussions  Forum     1590  5912282  01-29-2011
  »  New  I good spot-light for a turntable?..  Reply...  Analog Playback Forum     15  97138  10-24-2010
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