There was a time when if you wanted to use Pro Tools then the only way to get the audio in was to use an Avid interface with proprietary linking protocols. As technology progressed and Avid expanded their Pro Tools versions USB interfaces emerged. Once Pro Tools was unlocked from Avid audio interfaces then it became possible to use almost any Core Audio or ASIO equipped interface.
Further developments in power and speed with technologies like Thunderbolt have also meant some users no longer need a card based DSP solution using an Avid DigiLink connected interface. Have you taken that route or are you still relying on the Avid ecosystem built around DigiLink connectivity?
This poll is to see what audio interface you are using as your main audio interface.
Please feel free to comment.