I am having troublewith my new Apple TV 3 optical out and DAC. When I plug it in to my DAC the sound it Intermittent in short bursts. My DAC is a stereo one. does anyone know what the Apple TV output is form the optical. is it 5.1 and would this be why as it is confusing my DAC, which is only really set up for stereo??? It could also be that it does not like the upsampling to 48 mhz, athough my DAC copes fine with this my Blue Ray player which happlily sends 48khx through optical to my DAC. Any help or workrounds suggested whouidl be muc appreciated.