Where did you buy your first audio gear?

Gayla Sound, Rochester New York in 1983. I was clueless. I walked in with nothing Then walked out with a $3000 hi-fi.  (you could buy a new car for $3000 then). Those guys sold me good stuff. The AR Turntable with Grace F9e. Still have that cart. Not using it now but it sounds great with a new stylus from Soundsmith.
As separates, 100w ss amp and preamp from Bellas. (Now power modules).  Artesian Group monitors.  Those had Focal duel-coil drivers.  My daughter has that TT and speakers now. She was a seven YO then.

Bent

Montgomery Wards where I bought an all in one, but with separate speakers.

Then, real equipment from Sodaro's Electronics in Charleston WV.

Stereo Warehouse in San Luis Obispo. In 1974, it was JBL L100's, a Crown IC-150 preamp, and a Harman Kardon Citation 12 power amp, all for $550. My roommate was a salesman at SW and set me up with an employee 50% discount. I still own all three components.

Tech Hifi- Manhattan store- in the 40's I think. 1970's- I think either 76 or 77

House of Stein on Portage Ave. in Winnipeg, 1972. A small Sansui integrated, Dual 1210 TT and some small speakers which forgettable brand I don't recall. Before long I upgraded to some 15" Tannoys and SAE separates at my brother-in-law's urging shortly after he infected me with the incurable hi-fi bug. I don't have any of that stuff now and I haven't lived in Winnipeg for about 24 years :)