I have a oppertunity to purchase these Ethan Allen- JBL speaker cabinets. They have a LX300 woofer and a LE 25-2 tweeter. They have Ethan Allen stamped into the rear on them. Does anyone know approx how old they are, what model they are and how much they are worth. They sound ok, but I could not get the speaker grills off to check the condition of the surrounds of the woofer and mid.