I've only used Crown amps with JBLs for something like 45-years so my experience may be limited.
There are many different types of Crowns over many decades. Some were designed for Disk Jockey use where power may be more important than clarity. Some put cost over quality but they were always billed as budget alternatives to the other more expensive Crowns. Some folks don't like fans on their home amps. And then there may be copies since some new Crowns are made in China.
If you stick with the older D-series or (better yet, IMHO) the PS-Series you can't go wrong. I'm pretty sure the only ones they copy are the cheaper newer designs, not the heavy old stuff. I've owned a few different amps over that last few decades and played most of them with the same speakers, from McIntosh, to Fisher, and many Crowns. I currently have Soundcraftsmen, Adcom, Rotel, and Carver. I've not found a bad one but I always go back to the Crowns. I probably own over a dozen Crown amps including D45, D75A, D150, D150A-II, DC300A-II, PS200, PS400, and Studio Reference-II and over a dozen JBL speaker pairs including the L112. If you can find a nice Crown PS400 you'll have everything you need to make the L112 perform. Failing that, a PS200 will work fine for anything from normal to ear-bleed volume levels. You might save some bucks and get similar performance with the D150A-II or DC300A-II but I wouldn't go any older than those later D-series amps, personally.