Many baby boomers are what you call audiophiles.Equipment is usually called “High End” and includes playback equipment used by audiophiles, which is usually bought at specialist shops and online. High-end components include turntables, digital-to-analog converters, equalization devices, preamplifiers and amplifiers (both solid-state and vacuum tube), horn and electrostatic speakers, power conditioners, subwoofers, headphones, and acoustic room treatment.
My hubby loves to collect and restore vintage speakers. Here is a short video and Part 1 of a current restoration project. When these are completed they will be placed online for purchase.This video focuses on Acoustic Research Ar4 and Ar6 speakers.