So the ENO is basically an RF reduction device that uses chokes to filter the input. In the post by @arafiq below, he reports that the ENO designer told him a fiber optic interface does basically "a similar job" of noise reduction as the ENO.
That comment leads to my question of whether any ENO users have directly compared it to a fiber optic interface - and how did the two compare sonically?
That comment leads to my question of whether any ENO users have directly compared it to a fiber optic interface - and how did the two compare sonically?