Yes you can set the receiver to 60Hz. But there will (probably) be a response dip in the 60-80Hz range, which means that your system won't play as loud in that range. It won't "cut out", and it may not even be that noticeable. I say "probably" because the actual response depends on your room, speaker placement, the actual frequency response of the speakers, etc. But there will likely be a dip. Your system would probably sound better with the crossover set to 80Hz (or 100Hz) in the receiver.