@w123ale Even if you have an older Aurender, I would leverage that for the streaming and serving. It is documented on PS Audio forums, and it is the same for my experience, that the Bridge II introduces some digital noise and is a bit fatiguing compared to external streamers. I heard improved performance by removing it.
From my first post, I want to clarify that I am a very big supporter of this DAC even though I don’t classify it as analog sounding. I tend to be very critical of these things and have gotten spoiled being able to play with a lot of electronics in the $15-40K range. In its price range, especially used, it is very, very good.
With the number of used units popping up, definitely invest in a latest generation unit vs one that has been upgraded from the PerfectWave DAC. the two may sound sonically equivalent but the native DirectStream will be years newer and likely offer better longevity. The PS Audio warranty is also fully transferable and you might be able to find a used unit with some warranty remaining.