The filter I am using here is NPS5843.
The most critical elements in this DAC are the PCM converters -- PCM63p-K. This is a very special 20 bits resolution PCM converter. PCM63p has two 19 bit converters inside a chip responsible for the upper and lower sinu wave DA conversion. K here is meaning K-grade and it is the top of the line. However, it is not easy to get this chip nowadays. Many people still believe that PCM63 is the best DA converter!
Recently, I connected two PCM63p-K in parallel for each channel. The idea is coming from Monarchy Audio.
