That was really a little unfair how you came at
@TLS Guy I don't think he was trying to do anything other then help. Even at lower power he is correct the best speaker needs to be the center channel it needs the best dynamics the best everything really as it carries the bulk of the load.
For music if you use surround formats the center channel is even more important music is more demanding then movies on amps and speakers.
Have you thought about a 580. I think the 570 would drag down the 590's a bit but the 580 could keep up very well if you can make it work with your space requirements