What’s worked for me is just to let people listen.
The basics of my system have been evolving and improving over a number of years. Some was vintage when I started, some has become vintage over time, but it's been modified, reconfigured, and refined about as far as I can take it. After chasing out most of the gremlins I could find, it’s gotten to the point where I honestly feel that it’s on the impressive side for what is not a high dollar rig.
The system can play CD, SACD, LP, or from a PC. I have 3 sons who all come over and listen periodically for an audio and music night, and sometimes they’ll bring friends....most/many of them have some version of a home theater setup, and they’re typically pretty impressed with the soundstage and clarity that an old school stereo system can produce. They often report how boring their systems sound when they go back home and listen.