There certainly isn't harm from using a pure/clean sinewave, the PS Audio Powerplants generate an essentially pure sine wave, but as Aerosans points out high end audio is full of "interesting" theorys. Many of them seem like nonsense but many folks think they work. You are the ultimate judge if it works in your system. With respect to your suggestion for a 3000 watt power supply, that would require a 240 VAC line to generate that much power and account for the inefficiency of regenerating the power. Sure sounds like a good idea but anything powered by a 240 VAC source is pretty unusual in high end audio.
Is a pure sine wave UPS the best power treatment ?
Having read about the benefits of power conditioning, I have to ask why dual conversion UPS are not used more often? If one was to get a sufficiently powered model, say 3000watts upwards, this should be enough to satisfy all but the most power hungry systems out there. Surely generating "clean" power would be better than any device trying to work with the existing incoming power and trying to modify it. Am I missing something?.
Thanks
Thanks