Jonarts is right on; Roger Sound Labs was a studio monitor speaker manufacturer based in the San Fernando Valley that started as a manufacturer and later became a manufacturer/retailer, principally of its own speakers. They were apparently based heavily on the old JBL studio monitor series in appearance and sound design, and were a pretty good buy. I'm not sure what transpired, although I suspect that they got too far afield from their expertise as manufacturers, but they went bankrupt probably 7 or 8 years ago. I'm guessing that what you saw must be a pretty old speaker. With all the good, affordable brands available, you may want to look at PSB (e.g. their "Alpha") instead of buying something old. Good luck.
Anyone heard of RSL monitor speakers?
I recently spotted a pair of these 4 ohm floor-standing speakers. They look a lot like Vandersteens, though the body is solid. (Same wraparound black cloth with wood top/bottom.) They appear to have a ribbon tweeter and 2 drivers. Is anyone familiar with this manufacturer? They are made in California, the model is #4200b. Any information is greatly appreciated.