H Michael,
Those are regencies, and they are 3 way with 15" woofer, T10 or T25 mid horn, and T35 or T35b tweeter, X8 and X36 crossover. That is a lot of presumption on my part, but you can tell that they have 3 drivers by the fact that they have both the presence and brilliance pots on the side. I have one regency at home and have been looking for a mate. How come I never have buddies wanting to get rid of some? :sigh: Those are some nice sounding speakers. They need to be located in corners to produce the full amount of bass that they are capable of. As mentioned, make sure that all drivers are present, and hopefully working. The t35 diaphragms can be replaced if they are blown. The T10/T25 are much much harder to come by.