https://www.schiit.com/guides/choosing-a-headamp https://www.schiit.com/guides/choosing-a-headamp

We carry on a lot about things Schiit around here. That's because Jason Stoddard, Mike Moffat, and friends are genuine audio playback wizards.

Jason, Mike, and crew have done some wizardry upon an ESS Sabre 9028 delta-sigma modulator based DAC. They tucked Mike’s magic mega-combo-burrito filter into a PIC32-DSP microcontroller along with Unison USB and put one of Jason’s tricked out OpAmp line stages on the output. Magic happens. #SchiitAudio