I think "source immunity" with the DAVE has to be looked at in relative and not absolute terms. In the field of medicine, we define immunity as a "resistance to" meaning that a human host's immune system will have limits and that those limits can be overcome. The DAVE is immune to source jitter but only up to 2µs as Rob has stated but since no source that any of us will likely ever encounter will have more jitter than this, then from a practical perspective, it would be feasible to say that the DAVE is truly impervious to source jitter. Those of you who have an Oppo BDP-103 or BDP-105 and have tried to stream Tidal internally through the Oppo's own DAC know how horrible this sounds due to jitter. Then try running it through the DAVE and hear how magically it is transformed. It's truly a night and day difference and has thoroughly convinced me of Rob's claim about being immune to source jitter. For those wondering what jitter sounds like, here are some extreme examples (up to 16µs) that even the DAVE can do nothing about but again, this is jitter you will likely never encounter from even the worst piece of equipment: http://www.sereneaudio.com/blog/what-does-jitter-sound-like As for source RF, I don't think Rob has been inaccurate to say that the DAVE is immune to RF provided that people understand that this immunity has limits as well. My own experience has shown me that galvanic isolation has allowed even the noisiest sources to sound very good but a pristine source like the microRendu has shown me that even small amounts of RF can make a difference. What I have been observing lately is that the people that are now crying foul that the DAVE isn't completely immune to the source are non-DAVE owners. Once you become a DAVE-owner, such concerns become less relevant and even trivial because all that a DAVE owner knows is that everything he or she listens to sounds terrific and while some sources can sound better, no source ever sounds horrible.