Nay Zam

I have been working on upgrading our home audio system for a while now. Last year I grabbed a set of R-28-F towers for a great price and would like to add a center channel speaker that will complement them. Im happy with the way they sound but they don’t quite blow me away but for the price I can’t complain. I know the R-25C is the recommended center for these speakers but that model is now discontinued plus if I could get a higher level center I think I’d be much happier with the set up. I know I risk the center drowning out the towers but if that really becomes an issue I can always upgrade them down the road. I primarily use the system for music and occasionally home theater. Any suggestions on which I should get? I’d like to try to stay below $600 for it as well.