In that case if I had a Wilson main loudspeaker set of around 89 db , and I had 2 current versions of Thors hammers at hand I would try/experiment using them passive without the controller (...)
Do you want to operate the Thor full range?
BTW, I have owned the old Watchdog (than included the controller and amplifier) with Wilson System 7 - a perfect integration, except in color - the speakers were Ferrari red and the subwoofer burgundy ... At that time Audio.de ranked the Watchdog plus System 7 higher than the MAXX3.
The main problem with Wilson subs is size - even the smaller Watchdog is enormous - and very deep.
BTW, you can see detailed photos of the controller at this eBay auction: https://www.ebay.de/itm/Wilson-Audio-Watch-Controller/153066834669?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D20140131123730%26meid%3Df028b7caf5f0497d9844847a8c3c2739%26pid%3D100167%26rk%3D2%26rkt%3D15%26sd%3D132616526042%26itm%3D153066834669&_trksid=p5411.c100167.m2940