Thirty years of research led to the “mega-combo-burrito” filter used in Schiit Audio digital audio players. Mike Moffat originally discovered the ATT Bell Labs paper on which it is based while he was working on DSP for oil reservoir seismic survey processing. Mike used this filter in his Theta Digital DAC products. Schiit reintroduced the filter in Yggdrasi in the roaring ’10s.
After debut in Yiggie, Schiit used this filter in each of its multi-bit (R-2R) DAC products. In 2026, this filter is now found in each music DAC offered by the company. Even little Vestri, a $99 dongle DAC/AMP combination. I’m a sucker for innovation so I bought Vestri.
The other thing I did this spring was to buy commercial streamers to replace the Raspberry Pi cobbler that was getting somewhat moldy. All were starting to experience strange stalls and other issues. Earlier, I auditioned a FiiO SR-11 stream receiver and found it a big improvement over the home brew.
But this article is less about my rig and more about how the DACS I have came to be. It is a long journey that begins with a fire, a fire at AKM’s Japanese foundry, sole source of the DACS Schiit had been using in most of its products. This forced a technical change that sparked strategic changes at Schiit. That’s today’s story pieced together from “Schiit Happened” articles at Head-fi.
You must be logged in to post a comment.