I cannot think of a better place to implement a Crown XLS 1500 amp.
Built in Xover, TONS of power, simple to use and efficient to operate.
I agonized over selling mine when I sold off my Maggies, but eventually did.
I run an outboard plate amp for my sub. I don't like the amp in the enclosure if I can avoid it. In the future if the plate amp dies, it is easy to replace with a pro amp in my media closet.