The PS Audio website says to avoid the Bridge because it is noisy and use IS2 for input.
I use the Bridge for ethernet input with Tidal. MQA changed their format so the MQA conversion on the Bridge no longer works with Mcontrol. You have get another app and pay a subscription fee (I can't remember the name of the app).
I've had my Drectstream for several years and just decided to make some changes to it. Last week I upgraded the transformers to Edcor XS4400. I'm getting ready to add an outboard DC supply (Farad Super 3) for the analogue board, and put rf/emi shielding in the DAC.
Its my first time modifying equipment and is quite fun. It is giving the DAC new life after years of use. The PS Audio website has extensive information about modifying the DAC. You might want to read the review on Audio Science Review. It is counter to all the other reviews I've read.