Hi..i am a new user here. In my case i used several parallel dac chips, and made a very special lineair psu with polypropylene capacitors. It was a stack of 20x20cm capacitors in a huge seperate box.One of the competitors was the exasound E28 beside some other dac's. To make a long story short, the DDDAC wiped them all off the table, where the Exasound was the best of the rest. And the difference was not small.