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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.

Post Subject: The small thoughts.Posted by Romy the Cat on: 11/12/2011

It is interesting that PP3000 effect of the “deeper” MF cleaning is very much reminds the effect of going from an empty room live room to a much better acoustically treated room.

Anyhow, now I would like to talk a bit about stability of the effect. I do not think that the new PP3000 will have any betters power line dappling then PP2000. As I commented I still have some fluctuations of sound quality, the fluctuations minimized by the factor of 200 perhaps by use of regenerator but they still were there. Latterly I begin to attribute the fluctuations to other then electricity reasons but before to do it I would like to make sure that the electricity reasons are addressed.

In the past I implemented large cap bypass of the PP2000 battery that I think gave SOME stability of decupling. The PP3000 has no such additional cap bypass, it has slightly larger internal cap bypass. Since they, I am sure, went for different type of cap (the voltage is higher) then would it be possible that the quality of that caps made all difference? Another option – would it be possible that they use different type of battery in PP3000. The fact that PP3000 is loaded lightly is very much contributive to better sound quality but I do not think that it was the only reason. I did recognized the different sound between PP2000 loaded at 30% and 90% but it was not the same difference as what I have between the PP3000 and PP2000. Furthermore I made an experiment and loaded PP3000 at 100% load (1.5kW heater+ full playback). The depth of the MF cleaning did not change. So, what does it mean?

I hate and to happy at the same time to presume that it looks like PurePower did fuck up own generator again only this time they fuck it up in good direction. Despite of this assurance that PP3000 and PP2000 sonically identical, they presumably did something, perhaps unwillingly, with PP3000 that makes it to clean MF much deeper. I do not think that it is topological change but probably some parts that they used turned out to be better for sound or perhaps since they beef it up to get power they use larger parts for higher voltage and that made the sonic difference. The most important question to me now is: will PP3000 exhibit the same decoupling behavior as the PP2000 had. I do not have an answer. I have PP3000 for 4 days and so far I did not detect any significant changes. Why know what I have in power lines nowadays… again there is no damn bypass switch with PP3000.

There is another subject that makes me wonder. What would happen is I add more batteries to PurePower? They have now 7A/H but if I make it much larger? For sure the unit will be running longer from batteries – something that I do not care, but will those larger batteries change sound or the decoupling behavior. Larger battery is the same as the cap bypass – lowering inner impedance and it might be much more then this. It is possible that as batteries get older the internal impedance rises and the decoupling get worse. In such case a big ass battery would help. I do not mind to get huge battery but I do not know if PP3000 charger will handle it. A good 100-200A/H battery being discharge will suck in current that most likely melt PP3000. PurePower has one battery packs that they sell for 1000. If they were not so happy and not so expensive to ship then I would try them in order to see if adding more battery change sound or improve decoupling. Well, with very large battery decoupling is not a factor and it possible to drive PP3000 from battery for very long time. I have a neighbor next door with eclectic car, who know, one day he can wake up and it will be a car in his driveway with open hood, remove battery and “Get over it!” note stuck to his dashboard…

Rgs,
Romy the Cat

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