I'm pretty sure the same guy called the AGD Singularity 19 DAC a Schiit Yggdrasil/Holo Spring killer. I went looking, and can't find his Head-fi post. I can't find his YouTube video on that DAC either, but I clearly remember watching it. He did a full review. He probably removed them after the world realized the S19 was complete dog shit. I stopped taking anything he had to say seriously after that. YMMV.