21st 2008f May 2008

Posted in: Uncategorized
home theatre
harshk79 asked:


If I buy a 1000 watt home theatre audio system and only use it a minimal volume, will the system still chew up 1000 watts of energy?

Lynn
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5 Comments

  1. nope, thats jsut the theoretical maximum power the amp can put out total through all of the speakers, it probably won’t go past 100W total MAX without clipping (meaning it can’t properly output more)

    well, thats as simple as I can get, so no, it will never **** up that much power

    Comment by RoB — May 23, 2008 @ 11:47 pm

  2. Nope, infact it won’t necessarily ever use that much. That is the output wattage which is very different from the input wattage.

    Comment by derajer — May 27, 2008 @ 9:05 am

  3. To further answer your question, you can find out the maximum power used by any specific receiver (and/or DVD player, etc.) by looking up the specs online from the manufacturer’s website, in the owner’s manual, or by simply looking at the back of the unit by its power cord and add up the total max power of the sum of the electronic components used in your home theater system.

    Comment by XenonAudio — May 27, 2008 @ 12:17 pm

  4. No. The 1000 watt rating supplied by the manufacturer is most likely a summed amount from adding all the amplifiers power ratings in the system. In a 5.1 system, that would give you 5 amplifiers for all the speakers and 1 for the sub. In a 7.1 system, add two more amps for two more rear effect speakers. This rating system is downright deceptive because the system is not really capable of “1000 watts.” A little known fact in the audio industry is that the ratings listed for amps have very little regulation. It’s like saying a Kia Rio can go 120 mph - downhill with a strong wind behind it. So, not really gonna happen. As for electricity usage, most systems operate fine on a standard 15 amp circuit. The actual enery used will vary according to the dynamics of what you are listening too. More volume means more power needed. You would be suprised at how little actual wattage your amps are producing at any given moment. Go to a reputable a/v retailer or specialist and they can answer any questions you might have. Big box retailers and internet stores rarely have all the information you need.

    Comment by avguy76021 — May 27, 2008 @ 10:44 pm

  5. No, 1000 W means its maximum output. If you want to know the amount of power it will consume at minimal volume, look for the RMS (root mean squared) value. This should generally give you an idea of the amount of power your theater system takes up on average when its not cracking windows.

    Comment by Andaroopudin — May 29, 2008 @ 11:54 pm

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