05-25-06: EldartfordAPL previously used Crystal DACs, which sounded excellent. The AKM DACs Alex uses are the top-of-the-line offerings from AKM, and they do indeed sound superb.
Tvad...Checking the APL website I notice that the DACs which they use for the update are AKM. That's what I have in my Behringer DAC2496 which may be why it sounds good.
I am not aware of any other moddders who change DACs, but I could be mistaken.
The DAC swap performed by APL is one of the primary reasons Alex's mods sound so good...IMO, FWIW, YMMV...