Circa 1977 (i was still a pup at 13) we set my sister up with a new system thru our audio dealership, her system consisted of SX-850, Pl-518, and a pair of BMI Audio speakers. The speakers in question were IIRC, a 12 inch 4 way system. A hefty cabinet a bit larger than L100's and designed to be a floorstander with the inclusion of a 2 or 3 inch riser/base. They had sculpted foam grills nearly identical to the L100, i also remember the woofers having shiny, sticky doped cloth surrounds. Sorry i don't currently have a pic, if the thread survives and warrants i'll try to get a couple pics and attach. FWIW, the entire system is still, and has been in continuous service since new, with 0 repairs.