Setting up a Roon endpoint for a pair of stereo passive spekers

Hello All,
I a new to Raspberry Pi and was wondering if someone could provide some guidance on the following:
I need to setup a Roon endpoint on a Raspberry Pi and connect a pair of passive speakers. I am not entirely sure which Raspberry components I need to purchase and assemble.

I guess DigiAmp+ is suitable for the job, but, being rather new with that, I am not sure what other components are needed to make it work for Roon.

Any help is greatly appreciated, thank you!

How about this: How to build a Raspberry Pi Roon Endpoint Music Streamer - Raspberry Pi