This is basically a higher end Ori board or Zapfilter board. Erno Borbely is considered one of the best analog circuit designers in the world. I have one of these on my DAC and it was transformed into a giant killer. I bought a second one as I was planning on building a PCM1704 based DAC but don't have the time. My loss is your gain.
EB-604/417 ALL-JFET I/V Converter and Filter for DACs "Starter Kit"
$200
EB-604/417 ALL-JFET I/V Converter and Filter for DACs "Starter Kit"
$200







