Pass-through Roon Endpoints

Question: is there any advantage to using a fancier (i.e., pricier) streamer than the Wiim Pro for this purpose? It does nothing except pass the digital data through to the DAC, nor would a fancier one do anything beyond that.
 

love it when people ask to just immediately answer their own question. 
 

Are you trolling here? 

Is WiiM Pro a certified Roon endpoint now? Or are you streaming from Roon to WiiM using AirPlay? How are you streaming to Bluesound?
How is all this set up? What sources are you using? Qobuz, Tidal, Spotify, local music files? If you don’t hear any sonic differences between BS Node and WiiM Pro on B&W speakers something is not right. 
 

The Wiim does nothing to the data; it just passes it through directly.

There’s no such thing as a Roon pass-through. Doesn’t exist. 

When I tried WiiM Pro it wasn’t yet certified with Roon. Good to know they finally got that done. It’s an OK streamer with Qobuz and Tidal but I wouldn’t put it in a system with B&W 800 series speakers. 
 

What you need to consider is the following:

1. When you have your streamer connected to the DAC via coax you rely on the clock in the streamer. Given the price of WiiM we can safely assume the clock used in this unit isn’t anything special. It’s almost always best to use USB to DAC to rely more on clock in the DAC. With most modestly priced streamers you will get better sound using USB. 
2. Your Roon Core matters. 
3. Digital cables including Ethernet cables matter 

Rose should be a nice step up.