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Forums Apple Final Cut Pro Legacy OT: Self Powered Speakers

  • OT: Self Powered Speakers

  • Sean ONeil

    December 29, 2008 at 2:02 am

    Is there a way to calculate how much juice is wasted leaving them on at night? Do they consume less kw when not in use?


  • walter biscardi

    December 29, 2008 at 2:09 am

    Not that I know of, though it may say something in the specs.

    We shut down all electronics at night unless something is doing an over night render. But certainly those speakers get shut down each night as they’re not necessary for anything overnight. We run self-powered KRK Rokit 5’s in all our suites.

    Walter Biscardi, Jr.
    Biscardi Creative Media
    HD and SD Production for Broadcast and Independent Productions.

    Read my Blog!


  • Sean ONeil

    December 29, 2008 at 2:45 am

    Wow, I just googled this topic and this thread is the #1 hit. Scary.

    Yeah I’m just curious if turning them off at night is trivial or if it actually makes a difference.


  • Sean ONeil

    December 29, 2008 at 2:55 am

    I found the spec sheet for my speakers and it gives the answer. 120 watts with loud music, but only 12 watts when in idle. Still good to turn off at night, but not the end of the world if left on.


  • Bob Zelin

    December 29, 2008 at 2:56 am

    Hey Sean,
    there is no reason not to turn them off. It’s not like the capacitors in the power supply will be more unstable if you turn the speakers on and off, night after night.

    With that said, there are some speakers (like Behringer B2031 Truth speakers) that turn off when there is no signal applied to them for a period of time. I actually hate this feature (because the power light goes off, and you think that your speakers are not working), but some modern powered speakers have this feature.

    bob Zelin

  • todd reid

    December 30, 2008 at 2:23 pm

    many electronic devices still draw “phantom power” even when turned off. This was a “feature” added to lessen the time it takes them to “warm up”, and turn on. This means that we all are paying for electricity, that in essence, is not being used.

    When your just talking about a pair of speakers, it doesn’t seem to impressive, but think about your tv, stereo, cell phone chargers (draw power even when not hooked up to your phone), and almost everything else that you leave plugged in at your house/work.

    So knowing that, its better to power things down, but even BETTER to unplug them.
    I don’t follow this 100% as it is highly inconvenient, but I do what I can. To make it easier, you can hook several devices to a power strip. A power strip, when switched off, is said to eliminate “phantom power”.

    The less electricity you use, the less you have to pay, and you will lessen the amount of coal that the elec companies have to burn.

    Todd Reid
    Senior Editor
    Digitized Media, Inc.

  • Sean ONeil

    December 30, 2008 at 10:08 pm

    [todd reid]
    The less electricity you use, the less you have to pay, and you will lessen the amount of coal that the elec companies have to burn.”

    I’m in Southern California. No coal burning here :).


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