Question about Edirol UA-4FX External Sound System

2 Answers

Problems with the internal efxs.

I just opened my UA4FX and pluged it. The audio tranfer between the module and the computer is fine but I can't get the onboard efxs to work. None of the lights on the module lights up. Is it broken?

Posted by Anonymous on

  • Anonymous Aug 12, 2006

    The leds of the audio level lights up and the ubs led also lights up.



2 Answers


Try this... 1.unplug your UA-4FX and switch your "sampling rate" to 44.1. plug it back into your USB port. it should turn on. 2.if thats no the case, turn off your computer and unplug the device. Turn on your computer and plug it back in when your system if finished starting up. hope i helped! good luck!

Posted on Sep 03, 2007



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This is a usb bus powered, and maybe you got problem with the usb port, this happen many times the port can supply the correct voltage to the unit, do you have acces to other compu? try in it, if not then you are rigth, the ua-4fx is broke...good luck

Posted on Aug 11, 2006


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