There is no need for this GoodSoundClub forum to engage in warfare over the merits of PurePower products and our QC and service abilities.

I can answer any questions Paul might have – all he has to do is engage with us directly. My email is Richard@purepoweraps.com, Telephone 519 624 9735.

In spite of Romy’s contention that our QC isn’t up to his standards and we have no engineers of any ability and our brand of oscilloscope isn’t good enough,  he does confirm the simple fact that PurePower output has always delivered great sound. 

Romy’s opinion does need some updating. Our QC is thorough. Our engineers and technicians are world quality experts in AC power and how it interacts with audio equipment. They fully understand our product design and why it works. They are continually improving our products.

It is true that over past few years we had growing pains – and some service delays were definitely way too long.

We no longer suffer from slow service. In fact we do not have a single unit waiting for service today. Our turnarounds are very short. Our warranty policy is generous.

We have been delivering the PurePower 2000 for 3 years to over 30 countries worldwide – and our return rate is under 2%. The PurePower 1050 has not had a single return in 2010. 

In the end, only so much can be accomplished with hi-fi until the electricity is sorted out and made to be not only good, but also consistent. Congratulations on turning that very important corner.

Disappointed as I am to hear of yet another random sample delivered bad this far into the "new era", yet I am glad that either you persisted or APS relented to finally diagnose and repair your unit, not to mention the fact that, once again, the unit facilitated better sound from your system, in any case.

I am probably not alone in hoping that what appears to be continuing random, reactive QC is instead a Canadian variant of kansei engineering, in which case they could be rounding their own very round corner, their own way, themselves.

Best regards,
Paul S

Small-ish shop machinists and others who really benefit from the solid reliability and efficiency of 3-phase motors all use rotary converters, which run all day, every day, without complaint. Yes, they are noisy; but they will also drive some cable, which allows you to move them away.

These things last forever, and they turn up often at wholesale equipment auctions. You might even be able to buy the cable at one of those auctions.

Best regards,
Paul S

Well, the third phase is a bitch. If I have a n extra motor then I might try this

http://www.team.net/www/shop-talk/hm3phase.html

but for now I think I will try a regular capacitive static converter with a cap to convert the US standard 220V

http://www.allaboutcircuits.com/vol_2/chpt_10/1.html

to 3 phase fake power.

http://www.metalwebnews.com/howto/ph-conv/ph-conv.html

Romy the Cat wrote:

OK, I agree – it might be not necessary as PP2000 does produce fine electricity in a convenient package. Furthermore it violates the rule that I try to follow in audio generally: define snick objective and ONLY then render audio methods. http://www.romythecat.com/Forums/ShowPost.aspx?PostID=432 So, if the PP2000 produce a good sounding electricity then why I still bather myself to look into this subject? Well, probably because I am a Moron and intellectuals masturbation is very much not alien to me. The idea of TRYING the conceptually perfect electricity bugs me and I know that no one by myself would be able to satisfy my interests… So, I ate he bullet and got the motor-generator assembly. Did anybody believed that after I get ½ acre of unused lend then I will not try this option? Well, I did not get the house yet but being a fool I got the damn generator. The really is that I did not what the opportunity pass by. There was a deal for one of those machines: http://www.horlick.com/products.asp?prod=79&cat=65 http://www.horlick.com/images/MG-60RC-v4.pdf It is not the induction motor-generators that commonly used everywhere and that suffer from slippage, voltage droops problem to care load, low efficiency, high distortion and frequency fluctuation. What I got is a set of true synchronous brushless motor and synchronous brushless generator, even they much more complex and much more expensive but they produce a perfect waveform that is synchronized with the rotation – a true mechanical regeneration.  It is very expensive set but I got a very good deal on it, not to mention that it is not current production but older machine that use US/UK made parts. It is 6.5kW and optimized to care inductive load– perfect for my application, with exception of 950 pounds weight and 80dB self noise. The only problem that I see with this devise would be dealing with noise and with… unknown quality of sound it will produce. If the sound of electricity will be better than PP2000 then I think to build a soundproof generator shed on backyard. http://curezone.com/upload/Members/ChazTheMeatHe/Books/Survival/BW_Mag/Generators_En/How_to_construct_a_soundproof_generator_shed_By_Skip_Thoms.pdf I can do much better that what article suggest and I have many idea how to make it very chip but very effective. So, the attempt is here. Funny that I made the move without having the house yet but I truly did not what the opportunity for a good motor-generator set to pass. I think if I get the house in March then sometime in the end of summer I will be able to try the motor-generator and to hear the sound it produces.  Let see how it goes but I know now that I will not be bitching that I never tried it. At this point I need to found somebody guilty if it will not sound good.

Well, still a sort of disappointment. The generator does not produce a continuing sinusoid but a combination of very fine cords. It is not what I am l was looking for and I am not pleased.   I admit that despite of the patchy sinusoid  it the unit’s electricity still might sound not bad but I was kind of so pissed that I deseeded do not listen it for now.