mastercraft1990

I have a Yahama RX-V1600 7.1 that's being ran in a 5.1. I have RF-35's, RC-35, RS-25's and a RW-12. The AVR has a switch that allows the back surrounds to be used for the second amps for the towers. From what I've read in other forums I'm wasting my time and I'm ok with that. My question is can it hurt the towers and will taking the bars off the binding posts disable the crossovers? Just moved into a new house / basement and setting things up / playing around.