surge protecting external speakers

Discussion in 'MacBook Pro' started by schmintan, Mar 27, 2007.

  1. schmintan macrumors regular

    Mar 1, 2007
    i just got a set of stereo speakers for the mac book pro, but they have a very annoying hum. im told this is most likely caused by being plugged into the surge protector. i can check this when i get home, but if i find that they hum because of the surge protector, and that i have to plug them into a different socket, is it possible that a surge could come up through the speakers and into the mac book pro via the headphone jack ( audio out) on the MBP?
  2. localoid macrumors 68020


    Feb 20, 2007
    America's Third World
    You probably have a ground loop...

    You might try (per Apple):
    In other words, try plugging in the MBP and speakers into the same power strip... ;)
  3. schmintan thread starter macrumors regular

    Mar 1, 2007
    they are all plugged into the one strip, my surge protector has 4 sockets, and the laptop, external HD and speakes are plugged into this. maby if i try to plug them all in as close together as possible. i was going to return the speakers, but im guessing new speakers wont solve the problem. the problem also happens when im playing the ipod through the speakers and the MBP is switched off. that sounds like its an issue with the speakers does it not?
  4. MiniMan. macrumors regular

    Jan 2, 2007
    Yer id say its the speakers!
    cas i have a stero connected to my macbook and when i play nothing through my macbook into the speaker i get a little almost hissing/huming sound. BUT when i play nothing with my ipod connected to the stero i dont get any other noises but silence??!?
  5. schmintan thread starter macrumors regular

    Mar 1, 2007
    it was the speakers. tried them in most sockets in my house and still that infrernal tortorous hum! returned them and the technician ( sales guy) said they had a lot of trouble with creative speakers having hum and crackly volume knobs. went for the JBL duet speakers. smaller, less tone control but no hum!!! and they sound great for a set of small speakers. problem solved!

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