I agree with hilde45. I went with JL Fathoms over Rel. They offer much more flexibility in set up. They have full adjustable phase to adjust for proper placement. They also have built-in room correction via eq. Another point for me was that they are built in USA which makes service easier if it is needed for me.
The whole high level input is over rated imo too. There are also more than a get folks that have damaged amps by not having the high level connected properly.