Question about M-Audio FireWire 410 External Sound System

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Lots of noise when laptop power cord is plugged in

And I mean *lots* of noise...unbearable. Drove me crazy trying to diagnose it until one day I unplugged my laptop from the wall while it was connected to the 410 with the speakers on and the the noise ceased..complete silence.

Running on the battery isn't an option so how else could I address this issue?

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  • GDlux Dec 09, 2007

    I read a good bit about ground noise and it looks like there are a few solutions to this issue.
    1) Buy some 59cent adapter plug from radio shack( a search on the subject of "a/c noise" will lead you to the item # for the adapter)
    2) Isolate the hardware thats causing the noise to its own cicuit. In other words, plug it into an outlet that has no other grounded hardware running off of it.
    3) Do what I did -> use pliers to pull out the ground plug from my laptop power cable. The noise is absolutely gone.

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You must be running on pc, or it sounds like you may have a ground loop issue. If you are running a mac, then bus power over the firewire should be enough. If your running on a pc, try getting a pcmcia card with 6 pin firewire ports. If not then your pc laptop will have to power the 410 via ac adapter. That means both should be plugged in tot he wall. Ive gotten that interference before, and gett it on any audio, whether im producing or playing itunes. I find the trick is to reset the 410 via the output window in the top right. It's right above the level knob. Also, try just installing the latest driver, with the 410 disconnected, then launch it from a different file path than the icon.

I still use it for the macbook pro, and its not always top notch. I bought it 3 years ago for 500, and i see what 500 buys nowadays.......MOTU!!!!

Keep me posted.

Posted on Dec 16, 2007

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