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Help! my monitors don't like balanced inputs??

Discussion in 'Monitoring / Headphones' started by laoit, Feb 14, 2012.

  1. laoit

    laoit Active Member


    One of my Mackie Mr8s has started playing up. The problem is when I input balanced signals into them (it happens to both the TRS and XLR inputs) they do not have equal volumes. One of the monitors is a lot quieter than the other, Im sure the problem is caused by the speaker because 1. I have tried different cables 2. Ive tried different sources of sound where the signal is coming from and importantly 3. When I connect them both via the unbalanced input (RCA) they have the same volume and sound normal duh

    Whats going on? I find it strange that it only happens to the balanced inputs...

    Hopefully someone on here knows, I cannot find anything on the internet!

  2. TheJackAttack

    TheJackAttack Distinguished Member

    On the offending monitor, one of the wires has come unsoldered on the panel. You need to take it apart and resolder the broken connection. The connection may in fact not be "broken" off but may be a "cold solder" spot gone bad. The reason unbalanced works is that uses only half the signal in the first place. This should be very easy to fix.
  3. laoit

    laoit Active Member

    I see, that makes sense. Good to know its easy to fix, when I open the monitor will I be able to spot the broken connection or do I need some sort of diagram to help me find it?
  4. TheJackAttack

    TheJackAttack Distinguished Member

    Look for loose or broken solder at the jacks. Also look for solder that is not shiny.
  5. laoit

    laoit Active Member

    Ok thats all sorted! fixed and sounding good again.

    This forum is awesome. Thanks JackAttack! thumb
  6. RemyRAD

    RemyRAD Well-Known Member

    Nice fix Jack. Right on the money. Awesome.

    Quicker fixer upper. Bounty.
    Mx. Remy Ann David

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