Dac upsample sources Home › Forums › EA Series Amp › Dac upsample sources This topic contains 1 reply, has 2 voices, and was last updated by Charles Mallari 1 year, 1 month ago. Author Posts June 7, 2017 at 10:51 pm #9376 BNamanParticipant Does the amp DAC upsample Bluetooth and USB differently or at all? Can you add this feature? June 8, 2017 at 4:56 pm #9393 Charles MallariModerator The element amp DAC does not upsample the Bluetooth and USB signals. In general this is the preferred. Author Posts You must be logged in to reply to this topic.