Avguygeorge...30 years? I have been using a center speaker (same model as left and right) ever since I moved into my house in 1961. The living room has two french doors in the wall, and the doors are right where stereo speakers would go. This leaves three narrow pieces of wall. Speakers on the left and right wall sections would be too far apart, but a third speaker in the center solves the problem.
Even further back in time, say 1947, a "High End" system that I heard often (was forced to listen to) had two speakers, positioned as we do now for stereo, although the program was only mono.
Even further back in time, say 1947, a "High End" system that I heard often (was forced to listen to) had two speakers, positioned as we do now for stereo, although the program was only mono.