I bought a used 1050 33 years ago when I was in college and still have it. It needs some service, but I’ll def hang on to it, as it’s one of my faves.
Back in the day, I used Pioneer CS-99a’s, which were overpowered by it. After that, I used it with a pair of 901’s and Cambridge Soundworks Ensemble series 1’s. They were a good match, but the 901’s were ok too.
Today, I’d use a pair of larger ADS speakers with it... larger L towers like L1090, 1290, or1590 or 710/810. I find the ADS mids and tweeters are really smooth and work well with higher powered amps and receivers