Whenever I read the threads re AVRs, I get conflicting views and I end up thinking I probably don't need an AVR. Darn it.
It's like a spare tire on a car. Do you need a spare tire? (a) No, as long as you don't get a flat. (b) Yes, just in case
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You don't need a voltage regulator if your power supply is stable. But it's better to have one in case of severe voltage spikes.
Ultimately, it depends on how expensive you gears are. I wouldn't bother connecting an iPod dock/alarm clock to a voltage regulator, but I would if it's a Plasma TV + Blu ray + receiver.
Can I buy 2 1000 volts AVRs instead?
It's not 1000 volts, it's 1000 VA (volt-amperes).
Sometimes people say "watts" instead of "VA", because they are similar. Watts refers to the "actual power" drawn by the appliance; "VA" refers to the "apparent power". "VA" is used for determining specs for wire sizes and circuit breaking. (Don't ask me to make any more sense out of that; I don't understand it either
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Can I buy 2 1000 volts AVRs instead? This way, I use 2 outlets instead of just 1. Parang it's so weird to have all these devices plugged into 1 AVR and then to 1 outlet.
Sure, but that's not necessary. It's safe to connect to 1 wall outlet as long as the voltage regulator's capacity is sufficient for all appliances connected to it.
I say use one voltage regulator so you don't unnecessarily complicate an already complicated HT system.