Question about Adam Audio A7X Powered Studio Monitor (7 inch, 150 watts)

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Hi, I ordered my Adam a7x from america to Australia. When receiving them, i plugged in australian adapters (300/500volts). But when powering them up, unfortunately the light went on and then a crackle happened, then the light slowly faded out. Now the speakers won't turn on at all? Any answers?

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  • tyevanss Mar 14, 2011

    On the unit it says 2 options,

    220-240V .50hz
    100-120V .60hz i tried both, and don't turn them on?


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Did you just use adapters or actual step-down transformers?
A lot of equipment today is 110/220 auto-switching, but if you get something built for 110V (120V, 100V, markings may vary) only, then you need more than an adapter, you need a transformer!

Posted on Mar 14, 2011

  • 4 more comments 
  • tyevanss Mar 14, 2011

    I first tried using Australian cables C-13 (it says on the cable it supports 300/500 volt)... (Like the one i got with my Playstation 3)... or computer...

    Then i tried using one of their cables they supplied.. and an 'American to Australian' adapter so i could plug it into my wall.. but still doesnt work?

  • Norman Skinner
    Norman Skinner Mar 14, 2011

    Look at the voltage specs of the unit, not the cord. Does your unit say 110V or does it say 110 / 220V or what exactly?

  • tyevanss Mar 14, 2011

    on the unit it says 2 options
    220-240V 50hz
    100-120V 60hz

    IT says use only with a 250v plug.. which i did:/

  • Norman Skinner
    Norman Skinner Mar 14, 2011

    Well, it's new and under warranty, and I never suggest that anyone void their warranty, so I'd call up the manufacturer and say it never worked, and ask for an exchange.
    It may have been a factory defect.
    If you're absolutely positive you want to give up your warranty, post a note back here, and we'll see what we can do.

  • tyevanss Mar 14, 2011

    is it possible that i have blown my speakers already?

    is it possible that if the speaker was set to 120 volt.. and my main ac voltage on my wall socket is 220volt then i have blown the speaker... this would be sad...

  • Norman Skinner
    Norman Skinner Mar 14, 2011

    If the setting is manual rather than automatic (most are automatic) then yes - regardless of the cable you used, if the power supply was manually set to 120V or NOT manually set to 220 when the unit was powered up, that would almost definitely fry something.


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