My brother had a set of Onkyo speakers in the early 80's (got used, no idea on how old or #).
Three way 12", sealed mid & ribbon tweeter, mid & tweeter level adjustments. The cabs were nothing special. These were the first separate speakers I ever listened to. Thought they were very cool at the time-earth shaking bass!
The woofers were pro-looking, cast basket, not like the terrible rack/system speakers you see at the dump/Craigslist. The ribbons had a HUGE magnet. Long since blown, I put some peerless tweeter on a little baffle cut-out which worked just fine, level adjusted. This was like 10yrs later.
Anyway they still are up and running, his boy now out of high school has them along with the receiver my brother had too. I think my brother and father are more like the majority of the country that buys audio electronics. They buy something and enjoy it until it breaks, or they just don't want it in the livingroom anymore. My dad's stereo was a 1960 motorola all tube cabinet. 3 channel amp, 2-way sides and a single 15. Fond memories of Christmas music, playing my first LP etc. It's still in service at my brother-in-laws.