Where did you buy your first audio gear?

+1 Allied Radio! Midnight Madness sales!

Audiocom in Old Greenwich, CT. 1976-78. AGI 511, Hafler 101 preamps, GAS Son of Ampzilla, Infinity Monitors 1A, DCM Time Windows, Ariston RDIIS TT/SME3009/JH Formula 4/KMAL arms/GAS Sleeping Beauty mc cartridge, Mitsubishi DA-F10 tuner.

Olson Electronics in Pittsburgh.

tech hifi on angell street providence r.i. circa 1979-82 (i worked there to earn pocket money as a college student, first as a stock boy then as a customer service/sales person)

Radio Shack, so long ago I don't recall the specifics of what it was.  My dad bought it for me; we put it on lay away, common at the time (early 60s), and paid it off a few dollars at a time.  I loved it.  Today, of course, I have get that is far more $$ but far more satisfying.  Still, I loved that old RS setup.