Q:  I have a Turtle Beach sound card installed, updated and working just fine 
    when using speakers or headphones that are plugged into the output jacks 
    on the back of the card.  I can also listen to MP3's and the windows
    system sounds when using my USB headphones.

    However when I try to listen to the sound from my TV tuner card over the
    USB headphones I hear nothing.  It does work perfectly when using 1/8" 
    connected headphones plugged into the Turtle Beach outputs. There are 
    currently no speakers connected to my computer other than the USB 
    headphones and a set of 1/8" connected headphones to the sound card.


A:  USB headphones are their own sound card. You will not hear output from 
    the Turtle Beach Card unless something is connected to it. You can try 
    changing the Playback Device in your Audio properties to the USB headset.
    Please contact the USB Headset manufacturer for support.


                                   *****

    The same applies to USB Speakers:
    USB speakers are their own sound card and do not use the Turtle Beach 
    card. You can't connect USB speakers to the sound card. You would need
    to change the playback properties to the USB speakers from Sound and 
    Audio Devices in the Windows Control Panel.
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