I had the Stages. I had a real bad time with them. The frames came apart from just careful moving around, as you have to move panel speakers (or any speakers) around to get the best sound. Also, the ribbons (both tweeter/midrangs and bass panels) kept blowing. This happened even driven by a Levinson No. 23 amp, which was one of the most powerful amps back then (late 80s early 90s) And no, I didn't crank 'em all the way. Anyway, I completely wrote off the brand, even if I got a bad one, which to be fair, I probably did. Neither Apogee or the dealer would take 'em back, which upset me even more. They ended up sitting in the garage, and I didn't even bother to sell them as they weren't in any condition to sell anyway. So, I threw the suckers out.
For speakers of that vintage, gimme a B&W 801 Matrix Series 2. Not perfect, but a Hell of a lot better build quality, and more robust drivers. I know it's comparing apples to oranges, but the B&Ws are the better speaker, imo.