If you are using your iPods DAC by using headphones or line out to a stereo as well as many docking stations, the iPod will down convert to 16/44.1 as the DAC is only capable of playing in that resolution or lower.
If you are using your iPods DAC by using headphones or line out to a stereo as well as many docking stations, the iPod will down convert to 16/44.1 as the DAC is only capable of playing in that resolution or lower.