In the Summer of 1964 my mom and I did a National Parks tour for my Bar Mitzvah (in lieu of a catered affair). While We soaked up Yellowstone the Grand Canyon and Yosemite, my older brother was building a Dynakit PAS3, FM3, and ST70. After my return he took me to a McIntosh dealer in Ridgewood, NJ to shop for speakers. We chose KLH 17s. When hooked up to a Garrard changer with I don’t know what cartridge, that was my intro to HiFi. When I was able, I got myself an SCA 80 kit, a pair of A25s and a Dual 1209…1970.
What opened my ears wider was hearing Rectilinear 3s, IMF Monitors and Quad ESLs in the next few years.