OK.... These look very scary... Almost like the Bose speakers that resemble a AA defence battery when naked.
Here is goes, by Technics!
They may be related too.....
Attached Images tech1.jpg (70.0 KB, 133 views)
tech2.jpg (68.0 KB, 111 views
I used to sell those Technics speakers in the 1970's. Their claim to fame was being "time aligned" with the drivers all lined up at the point of origin. They had a few year run and I actually have a version in my garage which served me well for 30 years until the foam surrounds of the woofer disintegrated.
Call me crazy, but I liked the sound of the version after the one you posted. I think it is the SBL300. I compared them to many speakers in our store and found them the best sound for the dollar. We weren't a high end store but sold Sansui, Technics, Onkyo, Cerwin Vega, Altec lansing, Sound Craftsman EQ, Teac level brands.
That was an era where working in a HiFI store was a cool job and you could make money doing it. By the time 1980 began, most electronics was pretty cheaply made as Sansui really hit rock bottom. The fist set of speakers shown on this thread were the later Technics speakers made as cheap as possible. The tweeters had these real cheap plastic 'lenses" and cheap stamped parts.
Commissions dropped down as well and selling hifi no longer paid or was fun and I bid farewell. You could make a decent buck setting up a system for a person and speaker wire was something you threw in and the cables were what ever came in the box. If you knew your product and had a good way of handling people you could count on a steady streeam of repeat customers who wanted better products.
Some of the best laughs were when people bought crap like Sound Design or all in one systems and found that for only a few bucks more they could have a 30 watt reciever, a belt drive turntable with cartridge and a pair of nice book shelf speakers.
The best speaker concept was from a company called Synergistics. They had a basic 8-10-12 inch woofer, a basic 5 inch mid range and a basic tweeter which they used in every size cabinet to start from a little book shelf to a large floor stander. High mark up, great spiffs and a sound which though not great was acceptable for the era.