Remember Speakerlab speakers?
I built a pair of kit Speakerlab 7's back in '77. They still worked after 30 years--gave them to a friend. With two woofers and two horns, there wasn't much material left to the front baffle, made of particle board--not real solid. They were ok for their time--mine had the butyl rubber surrounds that lasted, others had foam that crumbled over time. The horns were ok, had volume controls. Their site has pics of the old catalogs--fun days.