Jlsounds AK4490 USB DAC with Burson V5 Opamp upgrade
Burson single opamps, give me a clearly night and day improvement; soundstage was now extremely wide, the details are wonderful and the listen pleasure is enormous. Sorry for my little american language;
Burson V5 Opamp Beats OA627 in Marantz PM6005
good signal to noise performance, more background details, outstanding mid high range