Due to a specific reason I don't want to publicly disclose my exact specs, but just to give you an idea, my two subwoofers alone eat about 1400W combined. Then there are high end 7-channel speakers, two projectors, a whole bunch of devices, switches, consoles, a HTPC, IR sensors, cameras, etc. Heck I'm even putting my 16 year old VCR into my HT room for nostalgic purposes ..
.. Apart from the speakers (excluding Subs) and AVR, I got everything imported from the US ..
I spent the day today looking about the specs of every major device and added their wattage ... I equated only for things that might be on simultaneously, and it's coming to about 3500W ... From what I hear only 3 KVA and 6 KVA online UPSs are common, not 4 or 5 KVA ..
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What was the total cost and what's the switchover time ?