Perhaps as at the age of ~12 in 1964 at night holding my ear up to the old tubed counsel radio in my bedroom with the volume turned down to a whisper so my parents could not hear me in the next room.
Irresponsible purchase of a Marantz 2040 integrated when I got to college in 1972. My first bank loan in 1979 when I first started working for a Pass - Threshold s500 ($5K, $20K in todays dollars).
Continuous pursuit through my home system, headphone system (Traveling first for 10 years as a geologist, then as traveling executive, work system (Headphone), Portable when I lived in hotels.
And finally the two last upgrades, before retirement and after retirement.