I have a pair of Pass X260.8's driving a pair of Wilson Sasha DAWs. My preamp is an ARC Ref 5SE. I use Purist Audio Design Corvus power cords and speaker cables with the amps. A Purist Dominus XLR connects the preamp to the amp. All Purist Audio Design power cords and cabling in my system.
I had to move up the Purist Line from the lower middle to the top middle and top level cables once I got the Sasha DAWs. I would describe Wilson speakers as perfectly clear glass windows looking back into your system. Any weak link in the component chain will stand out- especially cables. I've wanted a pair of Wilsons for decades but beware- cables are just as important as any other component in your system with Wilsons. Required some unplanned budgetary adjustments...
I have never had a chance to hear Transparent cabling. I heard the upper end of the AQ line with Wilson speakers when I auditioned them at the store. Those are not bad sounding cables either but I think the Purist line- the upper end bests them. The bass and clarity is spectacular without even a hint of harshness in the mid highs. The imaging is spooky. Hard to listen in complete darkness. It feels like people are moving around in the room.
Same experience as the OP with the room. The GIK bass traps and absorbers were a key addition to my system.