> What would be a modern audiophile setup?

What do you mean? What's the difference between an audiophile setup from the 80s GP was mentioning and one from today? Today you'd have a DAC, for a start. Maybe some DRC (Digital Room Correction software). Then amps have progressed tremendously. And so did speakers (newer materials).

As for the setup I listened to: I'm no pro, I don't remember the details. I know the speakers were Wilson Audio but I don't remember the DAC nor the amp(s) brands: all I know is it was high-end stuff costing money I'm personally not willing to put in an audio setup. But it did sound very good.