Welcome! Need support, you got it. Or share you ideas and experiences.
173.8.230.38
In Reply to: RE: PS audio PPP for OTL amplifiers posted by pepillotur on May 14, 2009 at 16:26:40
The fact that the auto former CAN handle 2000 watts doesn't really matter. It all depends on what it is actually doing, which is probably not that high at all.
I would suggest after the auto former is best. This is because the PPP can then make up for the problems of the auto former like a distorted waveform.
Thanks for your answer, Paul.So you are suggesting me to use a 120V PPP unit after the autoformer. I understand the reason you explain me to proceed in that way, there is no doubt that sonically it should be the best solution.
However I have been informed that using the 220 volt version before the autoformer puts less stress on the power conditioner because the current runs double if you cut the voltage in half. Let me know if this is correct.The main question here is that I have the doubt of if a single PSaudio PPP would be enough to feed without any demanding current limitation to my Joules VZN-100 OTL's, and not noticing the dynamic losses and other sonic problems many people talks about when using the PPP to feed some hungry amplifiers. I have not known by now of any other person using this combo, I only know of one person who uses VZN-160 OTL's and he is using two PPP to feed them (one for each monoblock). And these amps are 500W of power requirement each monoblock, since my VZN-100's are 400W each. So I wonder if I would also need two.
Please, let me know what you think about this.
Pep
Edits: 05/19/09
So, indeed, the current is half when the voltage is double but this means the power is the same - so no, it is not easier on anything. better after the transformer and one PPP is not enough - you would need two.
Thanks Paul,
Then, since I'm only using a single variac to feed both monoblocks, I guess I should speak with Jud Barber to get another one, and have a variac for each monoblock, and each variac plugged to his own PPP. I guess to have two PPP's feeding a single variac is not possible.
I wonder if I should also take a look at the ExactPower EP-15A option, that some people say it's a better option for hungry current amps.
Pep
Post a Followup:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2009, Audio Asylum, all rights reserved ]
[ Go Green ]
[ Take5 ]