Snowed inSnowmass is the sixth free OS upgrade for the PS Audio DirectStream DAC. "We rewrote the FPGA code that upsampled lower rates of PCM to 352.8/384kHz to get better control of the times at which things happen and thus, more control over FPGA-generated noise and jitter. In the old upsampler, we achieved about 144dB of S/NR. The new code gives us 156dB." Simultaneous with the launch of Snowmass, PS Audio also releases new code for the network Bridge II to "improve connectivity and stability of Spotify Connect and add a dimmer feature for the display."