My parents are clearing out the closets at home and are going to give me their old audio equipment. I'm trying to figure out what sort of speakers I'll be getting. They are old, probably mid to late 70's models. They are cylindrical with the driver (probably a 5 or 6 inch driver) facing upward. They have an inverted plastic cone above the driver which hangs from a circular board a few inches above the enclosure and driver. (Think of an upside down SVS cylinder with a plastic cone pointing down towards the driver). The board holding the plastic cone is held up by metal rails which continue along the length of the cylinder and are also the feet for the speaker. The speakers are finished in a dark laminate. Any guesses as to what these are? I'm thinking about tearing them apart, refinishing them and replacing the driver.