I have a question. I have Some Advent Loudspeakers from 1977 as the mains in my home theater system. They sound excellent to me and seem to be very well built. They are very heavy and sturdy. They are two way speakers with dynamic tweeters. I have seen the tweeters go for quite a bit of money by themselves on Ebay. My speakers suffured from what seems to have been a common problem on this model. The rubber rims rotted away. I have had the speakers "re-rimmed" and they sound just as good as ever. Since I didn't buy them, my parents did, and I don't know the original cost I'm curious to know where Advent ranked in the world of speakers. Were they higher end? Lower end? Mid range? They don't seem to be around anymore and while I'm happy with them I'd just like to know. It seems that it will be difficult to match a center speaker with them as well which is what I have been looking into lately.