Hi OP, I believe that I am on a similar level to you in terms of system cost and am also looking out for the next possible system upgrades.
As far as streamers go, the Bluesound Node (~$500) has been the go-to recommendation as a laptop replacement. I would also consider looking into the Ifi Zen Streamer ($400), which just came out. The Ifi is a streamer only and also looks to be just as functional with all the major streaming bases covered. Ifi hit a great price point. And as more reviews begin to come out, we'll see how the Ifi compares in quality to the rest of the market.
As far as a DAC upgrades goes, the Denafrips Ares 2 (~$800) seems to be universally winning over YouTube reviewers at it's price point for it's sound quality.
I'm not exactly sure what amps the ADS likes to be fed by. But since you mention that you're open to class D, I'll say a bit about it since that's what I know. I use NAD for the home theater and Peachtree for the stereo. My understanding is that NAD uses Purifi's version of class D while Peachtree is just now shifting towards the GaN to differentiate itself or get a different type of sound out of class D. You decide of any of this is worth looking into further. Best
As far as streamers go, the Bluesound Node (~$500) has been the go-to recommendation as a laptop replacement. I would also consider looking into the Ifi Zen Streamer ($400), which just came out. The Ifi is a streamer only and also looks to be just as functional with all the major streaming bases covered. Ifi hit a great price point. And as more reviews begin to come out, we'll see how the Ifi compares in quality to the rest of the market.
As far as a DAC upgrades goes, the Denafrips Ares 2 (~$800) seems to be universally winning over YouTube reviewers at it's price point for it's sound quality.
I'm not exactly sure what amps the ADS likes to be fed by. But since you mention that you're open to class D, I'll say a bit about it since that's what I know. I use NAD for the home theater and Peachtree for the stereo. My understanding is that NAD uses Purifi's version of class D while Peachtree is just now shifting towards the GaN to differentiate itself or get a different type of sound out of class D. You decide of any of this is worth looking into further. Best