Need Wireless Subwoofer Options

I am in the process of minimizing my system footprint and the large boomy Velodyne VA-1215X that hogs the corner of the living room is the bane of my wife's existence. I would like to replace it with a wireless sub I could hide behind the couch. I have found a few solid brands like Rel (T/7i) and JL Audio (d110) that can operate via wireless. Others like Paradigm and Klipsch do as well but I have less confidence in their sound. This is for a two channel system connected to the TV - no surround sound.

Any ideas on brands/models that would fit the bill? My budget is $1K max. No velodyne please.  One concern I have about the Rel is that it does not appear to have a phase setting and I have very limited placement options.  Should I be concerned about this?

Thanks.