This response has nothing to do with the Acute CDP - I've never seen it let alone heard it. However Tim P's response to the inquiry about the lack of an instruction sheet or manual is, I think, a good reason to do so to the extent that it sound consistant with my experience with EAR.
I have, but have not used in a long time, an EAR 834L line stage. I bought it, and appreciated it for its sonic signature. As HP said, reminiscent of my ARC SP10. But there the difference ends. This thing is one of the most poorly constructed units I have ever encountered in high end audio, right from the quality of the case, the imput selector, and cross talk from other inputs to the poorly attached RCA outputs. And, when trying to identify the correct tubes to use and their assigned sockets I could get clarity from either EAR, its then distributor, nor the 1 page instruction sheet which was inaccurate. Personally I would never buy from EAR again no matter the sonic potential.
FWIW :-(