How to switch sound output between optical and inbult speaker?

Discussion in 'iMac' started by 88 King, Jul 6, 2011.

  1. 88 King macrumors 6502

    88 King

    Jun 18, 2011
    London, UK
    I have a digital-to-analog converter connected to the imac using the 3.5 mm headphone/optical output. However, I can't switch output between optical and inbuilt speaker. The only way is to unplug the optical cable. I've attached a screen shot of the sound Settings

    Does anyone know how to switch between optical output and inbuilt speaker?

    The DAC can accept USB input, but all the USB ports are occupied at the moment.


    Attached Files:

  2. alust2013 macrumors 601


    Feb 6, 2010
    On the fence
    I'm pretty sure you just have to unplug it. It's like putting in a pair of headphones.
  3. John T macrumors 68020

    John T

    Mar 18, 2006
    There is an inbuilt switch incorporated in the headphone socket that switches the internal speakers out of circuit when headphones (or anything else with a 3.5m jack plug) is plugged in.

    If you want to use the DAC and listen via the internal speakers, you'll have to plug it into the USB socket.

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