UPS question

[zheavy]

I'm planning on buying a new UPS that can adapt to unstable electricity/voltages, so far I know that I would need a "line-interactive" UPS. Since this would protect both my UPS and all the parts connected to it.

 

However, I have been considering buying an on-line/double conversion/pure sinewave UPS for 2 reasons, I need to plug my surround to my UPS and keep it off the main electricity as it is very unstable.

 

There is also one more matter that I am unsure of, If i connect my surround system to my current "standard offline" UPS, when i'm running on the battery, the surround would produce a large noise/distortion. Is this due to the power from the battery not being sine wave? Will getting the on-line UPS fix this problem and keep things healthier?

 

 

 

I made 3 statements above, can anyone correct me if any of them is wrong? I also need your advice on what is the best "type" of UPS to get for unstable power, as in, what specs should I be looking for in a UPS? brand is irrelevant since I have to check what is available in my limited market. I also would need a 1.5 - 2 KVA UPS to handle 2 screens/desktop[~500W]+ large onkyo surround[idk how to calculate the usage].

 

[W-L]

45 minutes ago, zheavy said:

-SNIP-

For audio equipment and the best compatibility your best bet would be to get a pure sinewave based UPS as for what's good and the size you need what are the specs of your system and the details on that surround sound. 

[zheavy]

onkyo hts 3200, This is my surround system, the specs are on page 69-70, I've no clue how to calculate the power needed for a surround.

As for my PC, my PSU is a TT 630w smart edition, however i know that my PC barely reaches ~500W on full load, even less!! The screens combined consume at about 100w.

 

My rough estimate is a 2kva UPS to handle everything while giving ~10mins+ when power is off. However my MAIN concern is mostly, will getting an on-line pure sine wave UPS protect all my equipment better then keeping directly plugged on the main electricity? Will the UPS handle the power instability and not die due to voltages going up and down?

 

note: i'm mostly considering a PCE VX series.

[W-L]

20 minutes ago, zheavy said:

onkyo hts 3200, This is my surround system, the specs are on page 69-70, I've no clue how to calculate the power needed for a surround.

As for my PC, my PSU is a TT 630w smart edition, however i know that my PC barely reaches ~500W on full load, even less!! The screens combined consume at about 100w.

 

My rough estimate is a 2kva UPS to handle everything while giving ~10mins+ when power is off. However my MAIN concern is mostly, will getting an on-line pure sine wave UPS protect all my equipment better then keeping directly plugged on the main electricity? Will the UPS handle the power instability and not die due to voltages going up and down?

 

note: i'm mostly considering a PCE VX series.

Well it says it's a 660watt capable unit assuming that is acutely the peak draw from the wall, in most cases always less than that. Something like a 1000-1200w UPS should handle all of that quite easily. As for on-line UPS units you will be paying more and while it does protect better as there is no switch over but even  a good interactive unit will have an AVR to smooth out the variations in voltage without any problems. If things get bad it will automatically switch over to battery backup even if the power doesn't go out.