Adding wireless speakers to my current, vintage analog system.

After a bit more research I come to understand that there is Bluetooth and then there is WiFi. And WiFi seems to be the better choice when it comes to hi-res/losless sound quality. Ideally I get something with capabilities for both, WiFi and Bluetooth. 

If so, it comes down to a Receiver and Transmitter with WiFi and Bluetooth capability, a good DAC and flexible option for good speakers  – if that exists – which most likely limits the selection and makes it more expansive.
I can dream, right? Sigh!

I’m more confused now then when I started this thread

Thank you, mahler123, for laying it all out for me. 
It's not as bad as you seem to think. Some of the concepts I'm familiar with. But I did get confused, and it explains some things – and it may help me to decide how to approach this. 
What it comes down to is that I seem to suffer from first world problems:
– dreaming up things and being impatient about making it a reality
– assuming for tech to make anything possible, better, more convenient
– too many options
– expecting one thing to solve it all
– expecting high quality to be somewhat affordable
– constant upgraditis
– no time

I thought there were Bluetooth transmitters which take a receiver signal and translate and forward a digital signal to wireless speakers?
Sort of a reverse DAC - an ADC if you will. Or did I just make that up? 

Budget: it depends. Max $150.

Streaming: so far mainly Spotify (I may add other services later, dunno yet).. 

Vinyl and CD: happy with using CD player and turntable as is for now.

DAC: ideally both, Bluetooth and WiFi.

Any recommendations as far as good brands/models?

nmolnar

If I go with Sonos, I will need to use their amplifier/receiver and Speakers, correct?
From what I hear, the Sonos sound is rather boomy. Can you confirm that?
 

mahler123

Are you saying that, when I use wireless speakers, the sound quality is mainly defined (and/or even bottlenecked) by the speaker’s built-in amplifier?
If so, is there no way around that?

Do audiophiles avoid wireless speakers altogether, or are there speakers with excellent amps built in: If the latter, how do I control volume and EQ – on the speakers themselves?

Or, is the only way to use some of the proprietary speaker/amplification pairing (Sonos, MusiCast...)? If that, wouldn’t the receiver/amp have an influence on the sound quality?

Thank you all for taking your time and being patient wth me!

mahler123:
I guess my questions are confusing as I’m not yet familiar with terms and technology, or maybe I expect more than what’s currently possible.

To clarify: I was wondering about both, wirelessly to and from the receiver.

Receiving:
One of the questions I have now is if it’s worth skipping the laptop and stream "directly" to the receiver, and if an added Bluetooth receiver/DAC is the only/best way to do that in terms of sound quality.
I understand that it’s streaming to begin with and probably one way or another always inferior to wire-connecting a CD player or a turntable. So I guess this part of the equation is more about convenience.
I just wonder, if I were to get a Bluetooth receiver, what brand/model folks here recommend (best DAC, ease of setup and use, stability of signal, least amount of footprint...).

Sending (to speakers):
I understand that I cannot send sound directly from my receiver to my current speakers. I’d have to get wireless speakers, which seem to have wireless receivers built in (making them capable of receiving a wireless, digital signal). In addition I probably need some sort of transmitter connected to my receiver if I want to send a wireless/digital signal from my receiver to the speakers (when playing my turntable for example), correct?
Do I need to match the transmitter brand to the wireless speaker brand (proprietary technology) or do I have a choice, can I mix and match?
Either way, what wireless speaker and transmitter brands/models do folks here recommend (sound quality, uninterrupted signal, ease of setup and use...)?

Also:
I also heard that small devices can be added to existing analog speakers to make them capable of receiving wireless. Does anybody here have experience with that? Is it complicated? How’s the sound quality? What do folks here recommend?

New receiver?
I start wondering if it would be worth looking for a newer receiver with the desired technology built in.
Are there receivers out there that can match the sound and looks of my current setup?
Would I need to match receiver and speaker brand (proprietary tech)?
If I invest in something like that, do some of these come with separate/multi-channel options – so that I can control the volume of one pair of speakers independent from another pair of speakers?

Thank you all for sharing your advice and experience!
I’ll be happy to share mine once I get to a satisfying solution.

Any recommendation for a good DAC that does both, WiFi as well as Bluetooth aptX? 

Thank you so much for all your advice and patience! 
I think I have enough information now. 

I ended up getting a Wiim Pro Plus, which I just connected to the receiver today, via Line Out. And I started sourcing Spotify via WiFi. Was easy to set up. 

I skipped the laptop. I control/play Spotify from my phone and/or via the Wiim remote. Seems convenient, but I noticed significant latency when picking a new song in Spotify. It takes a lot longer until it plays the next song than it used to take via BLT. My WiFi is usually pretty fast and stable. Maybe some settings? 

I was also able to connect to a BLT speaker but haven’t managed to do both BLT and WiFi at the same time, not yet.

The Pro Plus is obviously slightly over my initial budget but seemed to be a good value for the money, with decent built quality, lots of options and a pretty good DAC. 
That way I have options and can customize things to whatever setup I want further down the road - unless I win the jackpot and decide to go all high-end separates or with a TOTL all-in-one receiver. If the latter I’m assuming the Pro Plus has still some resale value.

I’ll report more on my experience with this new toy soon. 

Thank you all for your help!

I seem to still be slightly confused about resolution and bit rates. 

What does it mean when Wiim claims that the DAC can handle digital audio files of up to 32-bit, 768kHz, and how would I ever take advantage of that? 

Is that just true for the receiving side of things? I assume this being a moot point for Spotify. But let’s say I use Tidal, do I need to get an external DAC with 31/768 out and bypass the Wiim’s DAC? 

If so, I feel mighty stupid as I was hoping that the Wiim’s DAC would suffice for this kind of scenario. That should be more clearly stated when they advertise the built-in DAC. “Handle” in my vocabulary doesn’t stop short of the device’s outputs.

I was able to clarify one thing, with help from some nice folks over at AK.
I think what I didn’t realize was that the 192/24 “limitation” only applies to some of the local/physical inputs, and not when music is streamed from the “cloud” via Ethernet or WiFi. 

Yessir!