I don't know the models, but I do recall thinking that the band's sound changed pretty dramatically over the years. Very early on (early '80's?), a local dealer brought the line in and I thought they were very strange sounding and seriously weird thru the midrange. Many, many years later, I heard them again at a different dealer and thought that they sounded pretty good.
Obviously this is ancient history here, so it's all IIRC.
Marty