Good question. No envy, I think it's gear I would have had if I had been a gearhead in the 70's. As far as how it sounds, I like it, no other reason needed.
Necro post, SX-939 here with Linton and Denton 85's. You should be fine unless you like concert levels. The Dentons really need a sub, though. The Lintons are a fantastic speaker, go for it!
Bose made some decent electronics back in the day, before BPC. I disagree, though, with the decent speakers comment by Sansuiman. I can't think of one decent example. Please post if you have speaker in mind!