I haven't bought speakers in over 10 years as I currently love my bookshelf/sub combo for my home theater system. I now want to build a music-only stereo system and am looking for used everything.

I'm looking for a pair of speakers that I don't believe are too popular anymore these days. They are mid-sized - bigger than bookshelf but not quite floorstanders. They would usually sit on short wood stands.

In the past I've seen them in Boston Acoustics and Paradigm, but almost anything will do as long as they are of high-quality and feature soft-dome tweeters. I'd prefer sealed or passive radiator options over ported. A speaker of that size should get into the 50-60Hz range, which is fine for me. 'tis better than a boombox.

What are some of the good speakers of the last 20 years I should be looking for on the auction sites? I'm willing to spend up to $800 for the pair, so that should open up most classic combos of reasonable quality.