The fisher x series are a gem. People over at audiokarma says it ,along with other tube integrate amps from that era, produces a sound that haven't been duplicated to this day(whether that's good or bad is in the eye of the beholder). I had to refinish the case on mine as well(fun little project). It mates better with some headphones better than others, but still sounds good on them all. But as a speaker amp is where it really shines, provided you have some efficient speakers. The 25wpc is conservatively rated. I've run them off floor standers with only 91db rating. I now run it off a pair of klipsch epics, and it's a match made in heaven. 200.00 was a very good score on that one. I've seen them go for more than that in non working condition. I hope you enjoy yours as much as I enjoy mine.
