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RE: best power conditioner for dirty AC

Posted by DevillEars on October 29, 2007 at 10:53:48:
If you're looking for a device that will clean up a modified square-wave and output a clean and pure sine-wave, then you're probably going to battle to find any passive line conditioner that really works.

Passive line conditioners exist purely to remove interference (EMI and RFI) from an otherwise reasonably clean sine wave supply and won't do anything significant to the frequency and waveform (or supply voltage) of the incoming mains supply.

What you really require is a "power regenerator" that first rectifies the "dirty AC supply" to provide a DC intermediate and then inverts this DC to produce a clean sinewave AC at a regulated frequency and voltage.

I take your point on the size and weight issues that you face, but if you really need to clean up the mains for studio recording for example, then its "regeneration time"!

So, if your requirement includes cleaning up the sound for recording purposes, I would strongly recommend that you check out the following power regenerator options:

a) ExactPower EP15A
b) PS Audio Power Plant Premier
c) PurePower Audio Power Supply

These three units seem to be priced around the "just under $2k" mark, while others (at $4k+) are probably overkill in terms of budget.

Good luck...

DevillEars