Where did you buy your first audio gear?

Army - Airforce audio video club in Germany in 1992 (? or there about).  Adcom GFA 545ii, GFP 555ii, a Nakamichi CD player, and B&W DM640 speakers.  Nakimichi is toast, but still have the rest, and it still sounds pretty good.  My divorce present replacing the rack mount kenwood system the ex kept.

Luskin's High Fidelity in North Miami Beach in 1975. A Scott R74S Receiver, pair of Altec 793C speakers, Kenwood turntable (later upgraded to a Garrard Zero-100).

Audio Consultants, Evanston IL, 1970s. Simon (the owner) retired in 2019, and closed up shop. Helluva run (opened in 1967!), and it was a terrific store.

When I was in law school, living in a cheap apartment in the early 1980s, there was an electronics store that sold used stuff. I bought an Aiwa tape deck and a cheap reel to reel. I was an aspiring musician playing in a band and writing music. I used it to record songs I was writing and would bounce tracks back and forth between the tape deck and the reel to reel. Also used the cassette deck as a master from a PA System to do a "studio" recording (I call it more of a "psuedio" recording) of songs we were playing.