If you've followed this thread and been subjected to the occasional photo and/or positioning diagram, you've probably noticed that with the bedroom door open there's effectively no right front corner to trap. Besides, placing a trap in that location could interfere with foot traffic in and out of the room.
But, being a self-styled audiophile with an amazingly forbearing spouse (though she's drawn a redline at putting up a "cloud" in there), I decided to see how placing a 12"x48" Monster filched from the living-dining-room system in that location would impact the audible performance of the bedroom rig. The door, after all, is veneer-faced hollow-core, which suggests to me no-no's like "reflection" and "sound board".
I first tried hanging the Monster on one of those felt-covered plastic doortop hooks you can find at Bed Bath & Beyond so its height would correspond to that of the front-wall 244s and center Monster array. Right away it was obvious that doing so extended the lateral soundstage, particularly on large-scale orchestral recordings (symphonies, concerti, ballet, and "big" film scores). It also improved front-to-back layering on recordings not perspective-flattened in the mixing process.
But how would aural performance fare if I simply planted the Monster on the floor, as shown in the photo below? Even better, as it turns out. The extended soundstage was there, all right. So, too, the layering, and an even more palpable presentation of intra-soundstage space, sustain, and decay. I won't recount the number of OMGs uttered while listening from one piece to the next.
End result: I'll order another trap so I can return the "loaner" to the living-dining-room system. What's nice about the 12"x48" trap is that it's portable enough to be moved without hassle into that location for serious listening and out at other times.
