I was 15 when a friend and I were standing in the speaker room of one of a bazillion audio shops outside of Detroit in the late 70's. We smiled at each other when a pair of Micro Acoustics Pro 3's sounded better than it's big brother the Pro 2's, and pretty much every other small speaker in the store. The salesman just shrugged. When I brought them home and put them up against my sister's Altec Model 1's, I continued to be impressed. They held their own against JBL, Pioneer HPMs, and other bookshelf speakers over the years as they journeyed with me through the dorm, off-campus housing, and 5 houses now. They now reside in my office.
Not Hifi, but really good Mid-fi. The Pro-3 was also known as the FRM-3 (I don't know why). It was often compared to the Bose 301 because of its directional tweeter, but to my taste sounded much fuller than the 301.