Has anyone here been able to use the upsample settings with Mytek DACs? I installed JRiver and tried to upsample my Redbook files to DSD. I hear intermittent gaps every other second. Music plays fine without upsampling and when I set the player to double or quad DSD, the DAC screen shows that's what's being delivered. I tried adjusting the buffer settings and a different USB cable, but the problem was not solved.