Power Consumption.

Caporegime
Joined
3 Jan 2006
Posts
25,184
Location
Chadderton, Oldham
Hi, I understand that the Amplifier in the Z5500 is supposed to be 500W, but the sattalites are only 12w RMS really and sub maybe 70w RMS?. Anyway, on Friday there is a big generator coming as there the whole village is gonna be withought power for the whole day, so my mum complained and got the electric board to send out a generator for out house, anyway, its supposed to be able to run a whole house off it seen as its a propor massive thing, but I dont want my PC and Speakers to use much electric and I am expecting to use them with the generator, so anyone have any Idea how much electric the Logitech Z5500 speakers will use playing at a nice volume, I would say up to 10bars on the control pod which for me is a nice decent volume with bass that goes nicely with it (sub on 4+), so you think the Z5500 will consume loads of electric?
 
Product description says-

- Total RMS power: 505 watts RMS
- Satellites: 317 watts RMS (2 x 62 W front, 2 x 62 rear, 69 W center)
- Subwoofer: 188 watts RMS

Which does add up to 505W (although the power ratings on PC speakers aren't to be taken too seriously). Obviously those number are sound output not power consumption though. Just a guess really, but I'd say they probably use about 80-200W depending on volume, and maybe 20-30W on standby.
 
Is 200W a lot? At the moment I got it on 9 bars, sub on on 4and the +, its Loudish with preety loud bass, but surely it cant be using much since it can go to 16bars with the sub on full before it's maxed
 
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what the amp (is claimed) to put out is not the power consumption. your best bet is to check the units plug fuse. whatever that fuse is rated for will give you a *worst case scenario*. amps x voltage = wattage. that is worst case of course, but factor in for that and you cant really go wrong.

being rated at 505rms and taking in to account that it wont be 100% efficiant, im betting it'll more like be a 3amp fuse rather than a 2amp
 
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It uses a 4A Slow Blow fuse in the actual Sub, but on the plug its a 5A.

Is that good or bad?
 
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I wouldn't worry, the generator they supplied will easily cover it (especially if you have an electric oven it needs to power, which uses up more in the order of 8000W, even a kettle uses around 3000W). I'd estimate the PC and speakers together using around 500-600W realistically. I remember you showing me that PC speaker review where they look inside the speakers too, the toroid inside looked like a 200-300VA unit from what I remember.
 
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