I'm still using an old stereo, the amps and speakers are still great. Although now I have a Raspberry Pi set up as an internet radio instead of a record deck.

I'm using a HiFiBerry DAC (https://www.hifiberry.com/dacplus) as the built-in analogue audio on the Pi is abysmal. Then MPD (https://www.musicpd.org) for the back-end and ympd (https://www.ympd.org) for a web UI.