I keep seeing the negative references to DSD performance with the Spring 2, and I could not disagree more with this point. I am using DSD upsampled to DSD512 with HQplayer, and getting the best sound I’ve ever got from my system. Upsampled 44.1 stuff is also good, but not the same level I’m getting with DSD files. This is comparing RB audio and DSD from the same SACDs. DSD has a more lifelike 3D quality that is addictive on the Spring 2. I have more than doubled the size of my SACD collection since acquiring this DAC last year (150 or so new SACDs). Enjoying 44.1 stuff too, but DSD is where I’m getting the most enjoyment from the Spring 2.