AIFF 24/96 no sound using SPDIF/optical Home › Forums › Discovery Server › AIFF 24/96 no sound using SPDIF/optical This topic contains 2 replies, has 2 voices, and was last updated by ex192 1 week, 6 days ago. Author Posts August 2, 2018 at 4:21 am #16104 ex192Participant My Discovery is connected to a Questyle CMA600i Headphone Amp with DAC. Via SPDIF the DAC supports up to 24/192. When playing 24bit/96khz AIFF material from a USB drive connected to Discovery server, there is no sound. Roon essentials fully idenfifies the file and shows it as playing. Any suggestions? August 3, 2018 at 12:41 pm #16133 stefanwegnerParticipant I had this problem as well…very odd. And now none of my files will play anymore. Looking forward to a solution. thx. August 6, 2018 at 2:07 am #16168 ex192Participant I am in contact with ELAC support and waiting for a reply. I have to limit the sampling rate to 48khz in Roon to play the files. If 16 or 24 bit doesn‘t matter… :-(( Author Posts You must be logged in to reply to this topic.