The best replacement for adat is spdif.

The best alternatives to adat are rated as following:
★★★★★  spdif
★★★  toslink
★★★  agama
★★  ibadat
★★  syariat
★  dat
★  aes ebu
★  madi
  s pdif
  ibadah
  word clock
  tdif
  hukum nasional

Your alternative for adat is not listed? Suggest!
Speaking about adat, one probably shouldn't forget about preamps.

Other search terms related to adat and their ratings are:
★★★★★ preamps
You have in mind a companion for adat and it is not yet here? Propose!



Google Trends

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adat
spdif
toslink