@Sound Eq --
Assuming that the HEKse sounds similar to the HEKv2, I can understand your opinion. There's certainly a distinct difference between HEK & Empy. HEK sounds open/airy/spare, detailed and quite linear. Empy is close to completely opposite on all those characteristics, with a lush/enveloping headstage, recessed highs, and elevated mid-bass. I wouldn't express those characteristics so negatively, but the contrast between those two is pretty dramatic. I do think that the perceived lack of detail may be more about tonality than technical competence.
Like you, I owned and sold Empy. And like you, having received a new DAC (Gumby A2) and amp (DSHA-3F), I really wonder how Empy would play with my current chain. Unfortunately, I don't have anyone who can provide me a set to audition with the new rig.
It would be interesting to listen to Empy via SonarWorks, although according to the website, they don't support Empy at the moment.
Amusing comment re Empy on your profile/info page