Not sure if you are still looking for the Advent AS2 speakers, But I just got a pair from goodwill about a month or so ago, and they are VERY good sounding.
Not the junk that I have heard some say they are, but quite neutral, great bass and clarity. I would say possibly one of the better sounding speakers I have heard in my 40 years of being into audio!
Quite comparable to much higher priced speakers for sure. Built fairly well, bracing inside, biwire terminals, and so on. Extremely impressed as I read newer Advent stuff was junk.
I would say they continue the sound that the founder of Advent envisioned for sure.
I have owned Advent Legacy and Prodigy and the AS2 sounds VERY similar to the Prodigy, perhaps somewhat better in some ways.