Hissing speakers when something plugged into FireWire ports

Discussion in 'Monitoring' started by Myth, Nov 30, 2005.

  1. Myth

    Myth Guest

    I have a pair of Event TR-8s that are connected to my Powerbook G4 and they emit a very audible hiss (like exagerated tape hiss) when I have something connected to my Powerbook's FireWire ports. As soon as I disconnect the FireWire cable it goes away.

    I have an external FireWire HD that hosts some of my sample and audio libraries and need to have connected while I work.

    Speakers are connected to computer's 1/8" audio/headphone jack via a 1/8" mini to RCA "Y" cable.

    Does anyone know what's going on? Any suggestions and pointers would help. Thanks!
     
  2. Calgary

    Calgary Active Member

    Joined:
    Nov 25, 2005
    Hi, I can't speak to the cause but if you run balanced cables you probably won't get the buzz. Although you might need a different soundcard to do that. I drive my TR-8s out of an afforable Emu 1212m and they sound very respectable.

    The only other thing I can think of is that you might have your trim pots cranked. Try setting them to 12 o'clock and see if that helps. :)
     
  3. Myth

    Myth Guest

    I keep the trim pots at about 1 o' clock.

    I was suspecting it could be the unbalanced cables. I am thinking of buying a Focusrite Saffire but that'll probably be until after the new year.

    Anyone else know what could be going on?
     
  4. Calgary

    Calgary Active Member

    Joined:
    Nov 25, 2005
    Don't get me wrong, you can run the TR8s with unbalanced cables without hiss. This is something to do with the audio bus in your soundcard/compie. FWIW down the road, the saffire will definitely fix that.
     
  5. Myth

    Myth Guest

    That stinks cause I thought Apple's internal soundcards were supposed to be top tier. Maybe it's a Powerbook thing. I wonder if this would happen on a desktop system.
     
  6. Calgary

    Calgary Active Member

    Joined:
    Nov 25, 2005
    Depends. The native PCI bus on some motherboards can be dirty but often they are OK-ish. It definitely won't happen if the desktop has basic decent soundcard. :cool:

    I'm anti-Apple so I can't say one way or another what the deal is there. Could be something simple, try another cable first.
     

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