I've been using Crown amps off and on in my systems since the days of the old DC-300A. Well built and bullet-proof into just about any load. Many are as audibly transparent as anything else around, so perfectly suitable for use in home systems.
OP, if the fan in your XLS ever becomes an issue, you can always pick up a K1 or K2 on the used market. The K Series amps employ convection cooling, rather than fans. I'm running a K2 that I bought on closeout back in 2000, and it has been outstanding. Quiet, and dependable as sunrise, with massive power on tap for any load.