Just found this thread, I had Bolivar 18's I loved them bought in 1978. They were definitely 4 ohm, affiliated with JBL is what the retailer told me. 100 watt power handling. I think they were 135 a piece. I thought it was great getting a 3 way speaker for less than 150. Amazing what a difference 15 dollars makes when you make 2.65/hr
