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Thread: Advice on Generator

  1. #1
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    Advice on Generator

    Hi guys,

    Just wondering if I could get some advice on the suitability of a Subaru ex21D generator for running both a B-52 Matrix 2000 system and some lighting?

    Specs here: https://subarupower.com/wp-content/u...x27-owners.pdf

    Cheers,
    Michael

  2. #2
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    The link you provided is for an engine not a generator, do you have the same for the generator?

    To figure out if the genset is appropriate add up the power consumption of all devices being connected. For lighting and small signal electronics(mixers, wireless microphones, etc) there is usually a current draw rating on the power supply of the equipment or where the IEC cable plugs in. For lighting use the rated wattage of the fixture. Speakers are more complicated, the rating on the amp module will be a long term average which will be quite low compared to the rated audio output, and my experience suggests you will need enough generator power to cover the audio power rating +10-15% which in this case is about 1500w to cover that unit alone.
    Last edited by conanski; 09-18-2019 at 09:27 AM.
    Paul O'Brien
    Old Tech Guy
    www.Techott.com

  3. #3
    New Member RonK's Avatar
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    Whatever you do, try and end up with something giving you a pure (or true) sine wave considering you will be using it with some sensitive electronics.

  4. #4
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    My generator experience suggests a pure sinewave version is not absolutely necessary, I have run several parade float systems on a quality non inverter generators with no problems, matter of fact the only time I had a problem was with the highly respected Honda inverter models but I believe that was related to the GFCI outlets which don't agree with a lot of modern electronics that contain switching power supplies. When I have used a heavy duty generator cable connected to the 220v outlet(which then splits into 2 115v outlets) there have been no problems. I believe as long as the generator provides voltage regulation and is of sufficient size it will be fine.
    Paul O'Brien
    Old Tech Guy
    www.Techott.com

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