I called to Audience and I spoke with their sales manager.

 It was very little that I did not expect and I let him to run his sales pitch. Or course it never intended to be a commercial product, they did it for own home use but it was so good that they were forced to make it available to public. Holly BS as usually. The guy poses himself as he knows everything about the adeptResponse conditioners but what I asked specific question he was ruining his mouth but was expressing absolute nonuse. I was listening him and interpreted him what he said “ with adeptResponse power amplifiers sound like they are 10 % more powerful”. I asked him what it meant. He gave me his explanation that was laughable. I asked him 3-4 more time how an amp after his filter might “sound more powerful”.  I even asked him to describe how subjectively one amp sound more powerful then another. Eventually he said the does not know and that was what he was told to say. Poor guy, he told me that if I need more evidence that his adeptResponse “works” then I need to read HP review or to study “multiple posts at AudioAsylem.com”. Oh, boy!!! I do not have any animosity to the guy, the pure thing die not understand what we was dealing with. So, I pretty much discard what he said.

From what I understand and very much in contrary to what that sale guy was trying to convince me the adeptResponse is just a regular capacitive filter. The sales guy was insisted about the super-isolation quality of adeptResponse but it is all BS, he did not understand what he was talking about.

In really I do not care about the adeptResponse power factor correction functionality adeptResponse has no idea what kind load it will be driven. The PP2000 has own factor correction functionality. The BS about super massive cooper ground bus terminal and about 5K price tag sound too ridicules to me to take seriously. What the story about adeptResponse boils down is that they use their own Auricap to shunt signal. Auricap are good capacitors, not the very “Best in the World” and the sales guy was insisted but Auricap are out there along with a handful of the best caps. If the adeptResponse would help to suppress the returned noise from PP2000 but would not affect Sound negatively then it would indicate that a use of good quality of capacitors might work out.

I think if adeptResponse will be able to make PP2000 parallel-able then it would make sense to get a few 200V Auricaps and to shunt PP2000’s input with them. That will be all that necessary and it will cost $50. I still a bit defensive and I do not think that very good caps would make the full difference but I would certainly am willing to try.

clarkjohnsen wrote:

The sales guy was insisted about the super-isolation quality of adeptResponse but it is all BS, he did not understand what he was talking about. You are arguing that the unit can't be much good because the sales guy was talking like... a sales guy? I actually know a couple people who use these and love them, but as we all know, if only from reading here, YMMV.

steverino wrote:

If the units are to be placed between the wall and the PP then I think that would be a safe way to use it. I do not recommend connecting audio equipment directly through them though.

Romy the Cat wrote:

I got my last PP2000, after the repair was done. My second new unit works since I got it repaired; it runs the whole playback, sounding very well and my attempts to add a second PP2000 led, as I described to worsening of sound. In the very deep core of my soul I was hoping that the second PP2000 that I was trying to add was in some way broken. It sounded fine itself but running along with my main unit it was not usable sonically. I thought that there is some other unknown defect in this second unit that made it happens. Two days ago I got the last third unit and it behave identically when it added to the first unit – so it was no fault of the specific wrongly assumed to be “broken” PP2000 but rather the characteristic of the topology, or at least the given implementation of the topology. Ok, I have now 3 fine working PP2000 and I can use only one unit, that sucks. I truly would like to have my power class A DSET amps to be driven from separate PP2000 and my class A/B ULF channel amp along with the front end to be driver from another PP2000. I have agreed with a ridicules idea to use my third PP2000 in my office as UPS for my computers. Still I need to learn how to employ two PP2000 for audio. The whole point to have two PP2000 to sound worse than one PP2000 defeats the purpose to employ the second PP2000. My objective is very simple: I have the whole playback running from one PP2000 and then to have another PP2000 plugged idle in the same line, while doing it I shall not have any degradation of sound in first unit. I do not have this result now. As soon I plug second PP2000 into the wall I got a lot of zippy brightness in the first unit. I am not willing to do any capacitive filtration before first PP2000. This is the condition of the task and I do not have a solution for now.

So, the sound was clearly degraded in the same way but the unit outputted less noise back to power line Interesting. I took an electric heater with adjustable power and was sliding the load to the second PP2000. The variation of the load made the second PP2000 to output very different amount of noise to power line (more load = less noise) but what was surprising the amount of HF harshness was fluctuating very little. I got to be something else I figured.

I asked myself if it is possible that two PP2000 mutually affect each other by magnetic of radio filed?  My two PP2000 are sitting parallel to each other at very low high proximity:

http://www.goodsoundclub.com/Site_Images/InsulationTransformer_3KW.JPG

So, I pull one of the second PP2000 out of the shelf and placed it good 6 feet away. Halleluiah! The HF harshness dropped very substantially. It was not gone but I would say 80% of it gone!!!! OK, I said, it is in the power cable that was running from the second PP2000 to the power receptacle behind the first one. I took as much large ferrite as I had in home and winded with power cable a huge choke, addling in the free space of the cable over 20 like HF common mode chokes. The noise dropped practically to nothing. It is still very slightly recognizable but it is not as near offensive as it use to be, at least it is how it sound with TODAY electricity.

OK, this is VERY good result, the PP2000 turned to be “radioactive” but this is workable. It is ironic that I discovered it in the 25 anniversary of Chernobyl catastrophe! The discovery made me VERY happy as not I can construct some kind of shield between the two PP2000. It also gives me another VERY fruitful direction to think. The PP2000 power cord is 6 feet and it sits right next to the many power cord that leads to the clean output power receptacles and cables that do to the equipment. So, the PP2000 power cord is “dirty” with the PP2000 returned noise and the PP2000 power cord must go away from clean output power cords. Since it is not possible in my layout then my PP2000 incoming power cords must be shielded.

BYW, this also would explain why Bill does not bitch about the PP2000 effect each other in his situation as his has his 3 unit sitting in 3 different location of his room.

Wow, this, if it confirms itself in the next few days, will be a major breakthrough in my use of the PP2000.

I separated my two of my PP2000 in my rack with 3 feet space and run everything from one PP2000 and both Milq power amps from another PP2000. I also routed the incoming power cords that that are far from each other and far from outcoming power cords. Each of incoming power cord is loaded with 3 large ferrite chokes. It looks like in this setting the things work. Whatever sound I have I do not feel tempered to roll of my tweeter for a 2-3dB and my MF for 1dB.  The Sound is pretty much as feel it has to be.

It looks like the problem of multiple PP2000 is resolved, BTW, both PP2000 are plugged in the very same wall outlet. The PP2000 that a drives Milqs is load with 50% and the PP2000 that runs front end with 40%. Another day when I have mood I will measure PP2000’s outputs in this configuration and will sniff with EMI sensor, trying to find out where and how  stray noise is coming out of PP2000 box. It looks like I have no use for my third PP2000 as I have no room to put it far from the rest PP2000 and in functional proximity to what it needs to drive. Perhaps I will find a configuration with three PP2000 units but I need to answer the main question of this experiment.

The main question of this experiment is following: does multiple PP2000 unit provide any sonic improvement over one single unit (considering that I can driver the whole system from one unit) . I do not have the answer to this question.  I do not have feeling to do the critical listening today. I will of cause as time come by. As today my sentiment is that two PP2000 sound a bit more dynamic then one, perhaps no dynamic but louder during load passages. This is very premature and I am sure my opinion will change 2509852 times during next few days/weeks… I will do more or final evaluations when I have my ULF amp with passive line-level filters back into duty.

A few words in the end of this little saga (do not worry more saga will come).The folk who follow this thread are witnesses all my ups and downs with PP2000, including the major fuck up that PurePower had in the end last year with new revision of PP2000. The question that a few folks asked at this site was why I demonstrate so much perseverance trying again and again to use PP2000 and trying to get the best out of it. The answer is ridiculously simple –Sound. When PP2000 properly operates and playback is organized with respect to sonic advantages that PP2000 offers than Sound is spectacular, truly is.  If I insist that I do not see my playback without using PP2000 then I do it not because I am trying to sell you PP2000 as some simpletons might feel.  In my view PP2000, although is does help with electricity (not completely)m but in reality it is not just a power treating devise  but rather a power sourer that makes audio to sound better. I very much like and in a way am addicted to the sonic contribution that PP2000 has. I consider it the sonic contribution in very proper direction.   I still do not attribute sonic benefits that PP2000 offers to PurePower as a company.   I do feel that sound of PurePower generators is an accident, happy accident and I am glad to be a part of it.

I made first set of test with one PP2000 vs. two PP2000 driving my enter playback. All grounds were lifted on the load side. The presence of second PP2000 did not made sound bright as before, the second PP2000 sits sufficiently far from the first one.

Starting from the convulsion: I like when my playback is driven from one single PP2000. I will make more experiment of course but as now is what I’m witnessing. This configuration with single PP2000 has a number of Sonic advantages. Let me I explain them.

Two PP2000 sound louder at louder passages, they truly do. However this loudness comes with a toll – it introduces generic, nonspecific volume intensity instead of the loudness of my sound. My playback has very subtle and delicate texture, something that I value tremendously. This texture is not “resolution” but rather ability to react to very fine tonal and contrast fluctuations while holding other sonic characteristics unaffected. I hardly ever seen this texture at other playbacks, it is in a way my invention and the way how my playback manages this texture is imperative for me. With one PP2000 the scale of my texture rises proportionally to the volume of Sound. In fact I feel that in my playback it is possible only while PP2000 is being used.  With two PP2000 the volume rises but my texture lagging behind. To a degree it feels like at loaders passages there is not enough color discrimination and subtleties dynamic contrasts got substituted with just high dynamic pressure. It does feel loader but it does not feel right to me.

There are some other sonic moments that I like with single PP2000, but in context of my multi-amp/multi-channel sisals I feel that I can mitigate them as they are static. The above-described problem with de-texturing and de-colorization of tine at high dynamic levels is not something that I can moderate with static setting neither with Macondo nor with Melquiades.

I return my playback powering everything from a single PP2000 and this problem does not manifest itself.

What does it mean? I do not know. Perhaps I need to play with grounds or with something else and find a way to make two PP2000 to sound like one. I do not know what kind tools are available for me to do so. I generally can stick with one unit but my single PP2000 does not drive my entire playback. Having my entire playback on without Pacific I have 99% load at my PP2000 and if I would like to turn Pacific on then I need ether shut down ether Schwartz or Phonostage.  Certainty it is not a big deal but I would rather to have two PP2000 loaded at 50% then one PP2000 load at 100%. Do not forget that I have amp that drives ULF is operating in class A/B. I do not want the PP2000 dive into sort bypass each time when orchestra goes fortissimo.

Let see how it goes. It would help if I knew what in electricity of two PP2000 might be responsible for what I describe?  I wonder: are my multiple PP2000 in phase?  Do they need to be in phase? I have no idea. If you read from me about the time-aliment of power regenerators and a need to synchronize the multiple  PP2000’s internal clocks then  at least you will understand how I end up to think about this silliness….

I do not participate in most forums, but I do follow conversations for information on equipment, configurations and the experience of ordinary buyers with the companies that make and sell our equipment.  Magazine reviewers always seem to have the company CEO toe-in their speakers!

I came to GoodSound when I was looking at power products, and followed many of the discussions about PurePower.  When I thought about moving to Europe from the US I contacted PurePower and had an exchange of emails about US and European compatibility etc.  I went with a different US solution at that time.  I came to Europe about 10 months ago and, despite the vastly superior power situation here than in Los Angeles, I looked again at different solutions.  I tried to buy a different product here, but I was never able to complete the deal - it seems that European distribution of US products is just awful when combined with the general absence of any notion of client-service in Europe.

I then tried to purchase a PurePower 1050i.  The European distributor had two available at a discount (I gathered later that they were flushing old stock) and I ordered one.  It took three weeks to do just that - the man was a terrible communicator.  

The unit arrived, eventually, after a month.  On plugging it in, the display immediately went to FAULT!!!.  The unit passed a current to my equipment (at that point just a lamp as a precaution), but the display was clear, even when restarted.  I asked if there was anything I should do before returning it.  After one week of fruitless back and forth I stated that I wanted to return the unit as I no longer had confidence in the product or the company.  No reply for five days until I sent another email demanding a response with a read receipt.

At that point the US Sales Director got involved who immediately relayed to me the wonderful accolades that a recent customer in Scotland had sent.  He ended with:  PurePower is the real deal, worth a little bit of hassle for what it does.  I guess that is why he is head of sales!  He won, I wanted the unit after all, so I tried to work with a technical guy in Canada.  The result was Fault!!!

It took ten days before I got a response from the USA that he would get the European to arrange for a return.  It is now 16 weeks later.  The unit was returned only five weeks ago, and I heard nothing back from Europe or the US.  I sent an ultimatum last week that I would put the matter in the hands of an attorney if I did not receive a confirmation of payment by the end of today.  The Head of Sales read it, but never responded.  The European distributor responded with a promise to make the payment.  Today I notified them that they had missed the deadline and immediately received a response that the payment was sent and they could fax me the slip.  That was followed by an email saying that the payment failed, despite them having my international payment instructions since December.

A long story.  I am contributing this because I would have wanted to read it when I was looking into PurePower.  I cannot say anything about the product, because I never got there - the company failed.  Easy to say that it is tricky dealing with distributors in Europe etc etc.  This involved the Head of Sales and the European distributor with Purelink.de as the web address, not some small part-time country rep.  At no point has the company or its people come though and cleaned up a small problem.  The company has failed to be the "real deal" or even a workable deal.  I am currently out one power system, the German Sales Tax plus Swiss Import Tax plus the purchase of the unit.

I would recommend to everyone that they think long and hard before buying from PurePower, no matter what the product is like or how much attention the company favorites receive.  I have no financial interest, professional or personal relationship with PurePower, its competitors or any other party in the audio industry or media.  I am just a guy who loves music and tries to take care of his gear.  I intend to post the same message on any other forum that I read about PurePower.

• 2 - JL Audio F113 subwoofers
• 2 - Wyred4Sound SX-1000 Mono amps (class D)
• 1 - Wyred4Sound SX-500 Mono amp (class D)
• 1 - Wyred4Sound MMC-5 five channel amp (class D)
• 1 - Denon AVP-A1 processor
• 1 - Prima Lunda Dialoge 3 Tube Preamp
• 1 - Apple Mac Mini
• 1 - Sony PS3
• 1 - DirecTV DVR HR-24
• 1 - Samsung Blu Ray Player
• 1 - Wyred4Sound DAC-2
• miscellaneous - ethernet switch, hard drive, Harmony RF extender

thrang wrote:

the capability of a PurePower 2000 for the components I have? I'm thinking of purchasing one...  Given the peak output performance of the 2000, I'm thinking I can connected all of the following  2 - JL Audio F113 subwoofers 2 - Wyred4Sound SX-1000 Mono amps (class D) 1 - Wyred4Sound SX-500 Mono amp (class D) 1 - Wyred4Sound MMC-5 five channel amp (class D) 1 - Denon AVP-A1 processor 1 - Prima Lunda Dialoge 3 Tube Preamp 1 - Apple Mac Mini 1 - Sony PS3 1 - DirecTV DVR HR-24 1 - Samsung Blu Ray Player 1 - Wyred4Sound DAC-2 miscellaneous - ethernet switch, hard drive, Harmony RF extender Wyred4Sound said the only thing to ask from their perspective is if the 2000 handles high capacitance loads well, which I guess their amps present - I don't know what that means, as my knowledge of electricity culminates with not putting your finger in a socket.

I do not know if you will be able to get any prediction of the PP2000 benefits in respect to your playback. To “handles high capacitance loads” is not the problem for PP2000 as far as I saw. The thing that you need consider, aside from normal sonic considerations, is the fact that your Wyred4Sound switching amps have most likely switching power supplies. When a switching power sources drives another switching power supplies then it leads to very dramatic dropping of power. It might be not a big deal for you but it might important. Anyhow, take those questions to Wyred4Sound and to PurePower.

thrang wrote:

I will take what you've posted back to Purepower/Wyred. Excure my ignorance, but are you saying the manner in which the Wyred's draw power might, in higher volume listening scenarios, exceed the capacity of the 2000? Or by dropping of power, what exactly are you referring to? The amps inabilty to produce it's rated power?

joaco wrote:

... this last time ive been doing some "ear" experiments and trying different setups of filtering . Just a question regarding a phenomena that im having , ive tried some ups/on-line regenerators and I think they tend to "smooth" all music but they do not tend to have a positive effect on dynamics , im recently trying a galvanic isolator transformer wired resembling "balanced" . This has no major effect on smoothing the music , but it tends to give "brutal" dynamics and lots of detail . Well my question is , Romy or other , do you feel pp2000 or other solution tend to increase dynamic in that way and also add the "smoothing"  ?

Romy the Cat wrote:

joaco wrote: ... this last time ive been doing some "ear" experiments and trying different setups of filtering . Just a question regarding a phenomena that im having , ive tried some ups/on-line regenerators and I think they tend to "smooth" all music but they do not tend to have a positive effect on dynamics , im recently trying a galvanic isolator transformer wired resembling "balanced" . This has no major effect on smoothing the music , but it tends to give "brutal" dynamics and lots of detail . Well my question is , Romy or other , do you feel pp2000 or other solution tend to increase dynamic in that way and also add the "smoothing"  ?  Joaco, can you elaborate of this "brutal" dynamics.  Do not know what you mean and I do not know if you recognize it as positive or negative effect. Also it would help me to understand what you are talking about if you describe in context of what specific recording you feel the dynamics turns to be brutal. The Cat