Where do I go from here?

When you get a DAC make sure that it has a USB input (most do). You can get started with streaming by using a laptop connected to the DAC with USB. It's best to hardwire the PC to the router vs. using wifi.

I have my ASUS gaming laptop hooked up to my DAC and the only service I subscribe to is Qobuz. I've compared the streamed content to the corresponding CD on a number of titles and they sound virtually identical. If there is some sort of bad juju coming from the computer I can't hear it. [I'm running an Audio Mirror Tubadour IV DAC]

The reason I suggest this is because there are a zillion different streaming options and you should take your time to figure out what you want when you go for a dedicated streamer. This simple setup lets you get your feet wet and get a sense of where you want to go next. I feel that you should look into Roon because it provides some powerful features but it's not for everyone. If you decide to go that route you will have to buy a streamer that is compatible.

In short, don't get lost in the weeds when you get started. Many of us have a spare laptop that we can use for streaming and it is a simple way to get going.

@patrickalston 
What a great room size!  Obviously there have been many advances in tech in twenty years, besides a DAC and a streamer, there’s no hurry to change anything else.  What is your budget? I’m sure we can help you far exceed it.😁

I have a Bluesound Node N130 with a better power supply, feeding USB Denifrips Pontus ll. Have had both about two years now and am still very happy the sound.

Take your time and have a fun adventure.

@patrickalston , I too have a pair of Acoustat 1+1s that I've owned since new. If they've not been energized for 20 some years, there's a good chance they need some work done. The panels are remarkably sturdy so I'm suspecting it's the transformers that are needing some attention. There's a fellow by the name of Roy Esposito who used to service them. You might see if he's still around:

acoustat.service.usa@gmail.com

With regards to streaming, As you're just coming back on-line after a hiatus, I'd like to suggest you start with something simple like a Bluesound Node2i. For around $550 new, you get an easy to set up and use streamer and DAC combo. (You can also find them used for about half that all day on the various sites like ebay and here on Agon.) It's easily controlled by their free downloadable app on your phone or tablet:

https://www.bluesound.com/downloads/

If you have Amazon prime, you're already paying for a music service that the Node can access. In fact, here's a list of supported Cloud music services:

https://www.bluesound.com/products/node-2i/

(Just scroll down to the spec page)

That will get you started! Eventually you can either swap out the Node2i for something more up-market or do what I did by upgrading the power supply and integrating an external DAC. 

Welcome back! Happy listening...

Just read some reviews on the WiiM Pro Plus. Worth checking out. 

While I understand the potential benefits that come with separates, I really want to keep my system simple by having the digital source rolled up into one package.  I'm not a critical listener anymore.  It just needs to sound (and look) good to us.  My home has  an open floorplan and, although we're still unpacking from our May move into this home, I suspect we'll be moving from our current location in two years into a home that we plan to build.  Ideally, I'd Iike a one-box digital solution that can act as a pre-amp, a power amp (perhaps dual monos), the CLSs, and a sub or two.  That's it.  As I approach 60, I want to shed the excess stuff in my life. 

For the amps, I was a big fan of the BAT VK-60 and would love to find a pair, but I'm also interested in the Cary monos.  I've got a line on a set of the 211s that may become available.  Love the way they sound, but not sure if they'd be the right match for my CLSs which aren't going anywhere.