Anyone remember Studio Design speakers?

This goes back to the 70’s- I recall they were a house brand for Tech Hifi. 
Anyone have any concrete knowledge of these speakers? 
I recall a 4 speaker lineup/ Model 16, 26, 36 and 46
I guess you are not familiar with Tech Hifi which was a chain of stores based in the Northeast USA. 

I remember both Tech Hifi and Studio Design speakers. I recall the 26 and 36 models, possibly because I considered a purchase. The line was competitive, with good specs, walnut veneer, and great pricing. I ultimately chose Pioneer Project 100's. I lived in CT until 1980, and think I purchased my turntable then at the Stamford store. They had comprehensive catalogs at the time with wacky models/graphics! Sounds Alive was another audio retailer I haunted. Crazy Eddie in NY too. I can't remember any details for the Studio Design Brand. Keep doing searches, you are bound to get a hit eventually.