Help a digital luddite


I have enjoyed putting my current system together over the last few years with an emphasis on vinyl and cd/sacd playback.  My current system consists of the following:

Marantz PM 11S3 integrated amp
Marantz SA-11S3 SACD player
Manley Chinook phono preamp
Music Hall MMF 9.1 turntable
Clearaudio Maestro cartridge
Focal Electra 1028BE speakers
Focal Chorus SW800 subwoofer

This system has proven to be an excellent balance of clarity and musicality in my 14'x18' listening room. My tastes run the gamut with a fairly heavy emphasis on blues and jazz and a healthy dose of both classic rock and "alt country" artists.

In an attempt to interest my millennial kids in joining me in listening to music, their response has been to ask why I do not have a way to listen to digital formats other than CD's.  While I defend the quality of my chosen formats, I frankly am too simple minded to understand the best way to incorporate either streaming audio or downloads on their laptops.

I have no interest in abandoning my current components but would like to supplement them with equipment of comparable price / quality.  My PM-11S3 has a well regarded built in phonostage, but upgrading to the Chinook made a meaningful difference.

According to Marantz, my Sa-11S3 SACD player has the following features:

"Digital versatility is the hallmark of the SA-11S3, as the player does double duty as a reference quality DAC and is equipped with numerous digital interfaces to accept a wide variety of formats. The front panel features a USB-A port for connection to a portable device such as an iPod, iPhone, iPad and the like, as well as compatibility with other devices. There's also a USB-B port on the rear panel, which provides compatibility with a wide range of digital formats, including up to 192 kHz/24 bit digital audio, and is compatible with asynchronous data streams from a computer (drivers are available for download on our website). In addition, there are coaxial and optical digital input ports for connection to other digital audio sources."
 
So - how do I best incorporate digital input from either my kids' laptops or a streaming service? Are any of the features of my SACD player sufficient to meet these goals or do I need a freestanding DAC or other piece of equipment.  If I want to just use my current equipment do I need any special cables?  Will a freestanding DAC dramatically improve sound quality over the built in DAC? If, so, any specific DAC recommendations? I am generally aware of the difference between compressed vs uncompressed files, but my eyes glaze over when talk turns to the various formats (mp3;wam;wav;mic;key; mou;se).  My goal would be to either achieve SQ comparable to my SACD's or better or just forego the effort.

I greatly appreciate any guidance you can provide.

sjtm
Personally, I wouldn't get bogged down with formats. Yes your system can be improved with a stand alone DAC but since your SA-11S3 accepts external inputs I would look at adding a streamer. A good choice would be an Aurender N100H which can usually be found used in the $1800.00 range. That way you can stream any music which would involve the rest of the family without having to purchase CD's. Save your money for the future when it comes to a stand alone DAC. I haven't checked the specs. but if your Marantz has an output from the transport that will allow you to use an external DAC then that offers an opportunity for upgrade. Most of all, enjoy the music!
Thanks.  I assume the Node 2i is a streamer ( you are talking to a luddite here).  Can you explain which of the various connection inputs on my SACD player is the preferred one to use? I have no idea the difference / merits of coaxial vs optical vs USB-A vs USB-B.
If the goal is playing music from your kids laptops its as simple as a $20 earphone to RCA adaptor. That's what I use for sound when watching movies from my laptop. 

I wouldn't go anything more than that. Because fundamentally, when it comes down to it, you are trying to introduce your kids to quality while they have been drawn into the modern fixation with quantity. They want you to be able to stream infinite variations on crap. You are trying to show them there value of selective quality. Both in music and in sound quality.

So if you succumb to temptation and buy buy buy more crap (streaming services, players, etc) all that does is blur the lines. What you want to do is hook up their laptop, play their music, let them hear how it sounds. Nobody cares about sound quality unless first they care about the music. So you get them listening to their music that they like and sounding the way they play it, by using the adaptor. Eventually they notice your music sounds better. Yes this works. Been there. Done that.