Rockna Audio

Wavedream Reference

The Rockna Audio Wavedream Reference is a digital-to-analog converter with an integrated network renderer, controlled by an AMD/ZYNQ chip and four FPGAs, using Rockna’s custom Linux system. Its conversion stage uses discrete sign-magnitude hybrid ladder modules with FPGA-embedded algorithms, 16× internal upsampling to 768 kHz or 705.6 kHz, and custom linear-, minimum-, and hybrid-phase Parks-McClellan filters. The unit has a 10-layer digital front-end board, symmetrical conversion boards, a dedicated low-noise power-supply board with over 20 power circuits and more than 90,000 µF of capacitance, copper shielding for the toroidal transformers and display, and a discrete class-A JFET/bipolar analog output stage.