My gut says you will need more power than the AX7e can give you for the 2CE's. I love the AX7e though and used it successfully for years with Harbeth SHL5+'s. The thing is that it needs balanced sources to sound its best. Once I updated my Digital Source to the Ayre Codex it really sounded great. The Codex is also balanced. I don't have any experience with the irDac but I did try running my Arcam Blink directly into the AX7 single-ended and it just didn't have the drive I needed for a satisfying listening experience.
As for the sound with the 2CE's I recommend contacting JohnnyR at the Audio Connection in Verona NJ to speak to the combination of this amp and speakers. He is an Ayre dealer and probably knows more about Vandersteen speakers than anyone outside of Vandersteen.
Good Luck!
As for the sound with the 2CE's I recommend contacting JohnnyR at the Audio Connection in Verona NJ to speak to the combination of this amp and speakers. He is an Ayre dealer and probably knows more about Vandersteen speakers than anyone outside of Vandersteen.
Good Luck!