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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Because of Purepower 3000 power was not enough for my high power ss system then I bought an ABB 18KW UPS.
Both APC and ABB are popular and my friend used APC and the sound of APC was not good and I choosed ABB to test between W...
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I long suppposed the whole thing hinged on a sort of dither effect, like the PurePower thingee. And I think this is at least some of what happens with "injection channels", including the root concept of what we are actually discussing in this thread...
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[quote user="N-set"]* Line stabilization...[/quote]I took a quick look at the industrial stabilizers (Purepower and alike look quite suspicious to me given that they carry AC/DC and DC/AC convertersand claim 2kW or whatever with a very slim and compa...
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Ha! Criminals is going a bit too far, unless you want to call all the audiophile companies criminals. I am not saying that is not the case, but the behavior of PurePower is not different from many other audiophile companies or many other similar busi...
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[quote user="Biggy"] I listen with pleasure usually after 11p.m. ; in the morning system is more "harsh" than in the night.[/quote]Emanuele Understanding what is different and pose those things into your questions. Without indicating what your change...
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[quote user="steverino"]I am sure you are happy you eventually after years got a Purepower unit after they took yours and "misplaced" it. But if it wasn't for the constant harping on this sorry treatment by you, me and others in these threads who kno...
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Hi Romy:After reading your slightly less than flattering portrait of Bob Rapoport, marketing director of PurePower, I felt compelled to have a look into the guy's background. This is so completely priceless! If you follow the link below to the guy's ...
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[quote user="Romy the Cat"]That is a whole point: the shape of the sinusoid and consequential harmonic distortions are not being the decisive factor that responsible for better sound. It is sad that neither PP owners nor we the users after years of u...
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Thanks, Bill, I do not need it yet. I estimate that I am a good 2-5 weeks away from the time what I might just stat play with my playback at any more or less refined level. Also, I would like as well you to compare your PP2000 with mine, not that I s...
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Among the contemporary ion tweeters I heard only with Acapellas, multiple times, never was happy with the results as the tweeters sounded as different drivers to the enter speaker. Also in a past I bought on eBay a number of vintage ion tweeters – th...
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Almost all such hum finds its way into your audio signal path through a ground loop, although it is technically possible for AC 50/60 cycle hum to enter from adjacent unshielded power cables. Make sure the AC cable to the phono is well shielded and i...
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Romy,I agree with the very nice summary you have made of the situation. You remember that I struggled for a couple years to get PurePower to return my PP2000 which had gone for repairs, but ultimately they replaced it with a PP3000+. I just have to ...
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[quote user="Romy the Cat"]BTW, there are reasonably simple tests to verify that your unit does or does not have the problem that my November units has, the testing procedures you will need to get from PurePower.[/quote]I will certainly look into thi...
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[quote user="drdna"]Do not buy from this company. They took my money with no intention to ever deliver a unit to me. If you find a unit on the shelf in a store and it is functioning, buy that unit and take it home. Don't give Purepower your money up ...
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I have owned a PurePower 2000i (prior to the company moving its production back to Canada) and while it had a positive effect on the playback it created more issues than it solved with its noisy switching recharging circuit and the internal fans. The...
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I had the same problem with my 6 foot, bass horns , which were built from 3/4 inch high density fiberboard. On doing some measurements back then, it turned out that they were vibrating for a few milliseconds after a pulse, giving a decent rise time b...
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[quote user="martinshorn"]hi AmirIve been experimenting for long with this till i discovered it can be so easy and cheap. Just get a isolation transformator and an HF blocker. In this order respectively, for the pc only. Available for small money fro...
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Romy
Have you ever tried a PUREPOWER device feeding something like the Torus RM20 which has a huge transformer and then out to the components? The Torus stores a lot of energy in those huge transformers. Do you feel this would have any merit...
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Hello friends,For long I wanted to address the issues of too few power outlets and improvement of AC quality. I currently use two $10 power strips. I do not have $2000 for APS purepower, so maybe some one can help me start off with the basics. I have...
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Only on this website do I find myself laughing and crying reading the same post.[quote user="Romy the Cat"]PurePower do not need to collect opinions, including from me. The need to produce a product that has default operational sound and the made of ...
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[quote user="Romy the Cat"]The change of the voltage from battery and from AC always was there, I have seen it on all PurePower Units but I did not even report it as I find it absolutely irrelevant.[/quote]Romy, you've said in the past:[quote user="R...
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I have listened to six different AC filters recently in two different audio systems , four of six ac filters were awful but two of them (lessloss and Ayre) were better:- Ayre L5XE - Lessloss x640I do not judge these two AC filters because I did not p...
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[quote user="de charlus"]...good wines do come from the most obscure producers, particularly in great vintages, but considerable expertise and an eidetic memory are required to amass sufficient understanding to easily negotiate the admittedly complex...
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Dave, thanks for the story. Might I ask you to talk more about the sound of the unit? What kind of equipment you use on it? I do not mean the brand/models but it is SS, tube, type of powers supplies, wattage… etc… Did you do decupling test by switch...
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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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Yes, the HF do slowly return with PurePower 2000 where they shell be. It very slowly the PP2000 look like dials itself back to “neutrality”. I begin very leisurely to roll back my tweeter and the plate current on my MF channels.
The Cat ...
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Since my PP unit was never returned from service by Purepower 9 years ago and I was promised Gold+ unit - they seem to have disappeared again.
Any update what is going on with Damian or Richard at Purepower? Their record of non-r...
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[quote user="steverino"]Again I would ask people who are reporting problems to state whether they have the original PP or the Plus version made in the last few years. I assume Adrian had an original version with a hum problem which was incautiously r...
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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="Romy the Cat"].[/quote]What do you know, today is December, that makes me to use the APS Purepower 2000 for one year. I would like to share some observations about the experiences.Since I posted my comments last year a few folks I know b...
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