This doesn't directly answer your question, but there is a rave review of the larger ML Voyage in the Sept/Oct issue of The Perfect Vision. The Voyage is also an in-wall speaker but with both ATF midranges and tweeter. I think the simpler Passage lacks the ATF midranges.
I haven't heard either the Voyage or Passage myself, but I have auditioned the smaller on-wall Fresco, which sounded very clear, open, and lively.
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