|Originally posted by taoster
sorry for dragging up a very old thread but i didn't really wanted to create a new one.
I been looking at surge protections/filters when I came across APC voltage regulator.
I understand most UPS are considered bad in its ability to construct sine waves but how about a computer voltage regulator? has anyone have any experience or comment on why this may not be a good surge/filter for audio.
btw i live in australia so many of the other power product discussed can not be used.
I don't think regular computer power backups are suitable for audio. They are just boxes to supply power for a computer in case of power failure (or have over or under voltage protection)
with a touch of surge suppression. They are not too hot on surge protection or "conditioning". Also, the output waveform is not great stuff for audio power transformers. And most power backup units cannot supply real power for big amps. I won't put one on my system.
For your audio gear you want current and PROTECTION. The Brickwall absolutely stomps most computer power units in surge suppression and filtering.
But anything you put between your audio gear and the wall power socket will limit power. To get a decent regulator it will have to be huge, heavy, and very very expensive. And this does not necessarily provide EMI filtering and surge suppression.
I have a "network" of power to my living room systems. Everything goes through one Brickwall unit. Then to a very high capacity 1500 joule big MOV type surge suppressor unit. Then it splits to two more surge suppressors, one for audio, one for video. I have no problems with power or sound, but my power amp is about 150 watts RMS per channel.
I think using computer power backup units for audio, well, is a no no.
If you are unable to get a Brickwall unit (Brickwall resells the units under their name, I forget the parent companies name) in your country check around for "series mode surge suppressors".
If you have a lot of brownouts or power problems, and can't get a good conditioner or even a regulator or battery backup, you could buy or make a little box with a relay and a reset button that would disconnect power from your system if the voltage cuts out for a brief period or a serious brownout. If the power is going to fluctuate for a few seconds or minutes, best to let it stay off anyway.
There are also non battery type of ac voltage regulators. I remember a long time ago a "Sola" brand that was like that. It was reasonably priced, and went up to high capacities.