Streamer upgrade


I need recommendations for a new streamer that will replace my Sonos Connect.  The rest of the system, developed largely from AG recommendations, consists of Fritz speakers, driven by a Primaluna EVO100 integrated. Sources are a Clearaudio Concept table and Cambridge Audio CD transport through a Schitt Bifrost (also handling DAC duties for the Sonos).  I'm using Amazon HD as a streaming source right now.  This system doesn't need to integrate with  my other Sonos speakers.  It's my intention that this be an end-game system, so I'm looking for a streamer that's appropriate to its level rather than something that's going to lead me down the path of perpetually upgrading other components.  Price is a secondary concern, used gear is fine.

Thanks for any advice - truly appreciated, and I'm grateful for all of the forum help I've received in the past.
philiptamarkin
Lumin  -- I have had the D2, A-1, X-1 and just purchased a U-1 mini. There is one for any budget but if you can step up the X-1 is definitely reference quality Dac/Streamer.  The app is super easy to use.  You do not need Roon or JRiver.  I know there is a thread devoted to the Lumin X-1.  You should read it.
" It’s my intention that this be an end-game system, so I’m looking for a streamer that’s appropriate to its level rather than something that’s going to lead me down the path of perpetually upgrading other components"
So one box ? streamer/dac/managment software?
I am still riding the separate/tinker bus. I like the flexibility of being able to upgraded or change each stage. There is so much good stuff to be had out on the used market. Giant audio flea market at you finger tips. Cuts both ways as I did sell a pair of speakers I wish i had back now :(
You kinda already taken the first step by stepping out of the Sonos connect and adding the Bitfrost.
Have heard of the auralic aries g2.1 being really end game! Other options I guess would be innuos zenith mk3 with a phoenix reclocker? 

Still exploring with streamers, just my 2 cents!
I would recommend looking at the Aurender versus Aries G2. I have owned both. I found, in general, the Aurender to be quieter with a more open soundstage.