Mytek Stereo 192-DSD DAC. This is a well reviewed unit that will decode DSD as well as CD or other digital sources. Mytek has is roots in professional audio, and is considered an innovator in the field. Original Cost about $1,600 in 2015. No problems with the unit. It sounds very nice, and adds a bit of extra detail to my system. Purchased new when experimenting with DSD. Have it as front end to Marantz Pre-Pro to provide a more detailed input than the internal Marantz components. I have a complicated house wide system with 7 sets of speakers. It does a great job of providing suitably articulate source material to the system.