I haven't re-run Audyssey or anything yet, but just wanted to give a quick test with the addition of the bass traps. I watched Mad Max Fury Road as it has a lot of heavy bass and has traditionally been a little more challenging for me to watch at decent volume in my HT (one of those movies that I have to turn way down). With the traps in place, I have to say, I was damn impressed! I had it cranked up and the system played clean and there was no boominess or overbearing sounds being exhibited. in fact, I bumped up the trim another 2dB on my subs and it still sounded clean! Also, because of the trap behind me, I felt like the system as a whole was way more 3 dimensional, and I could hear objects and sounds moving all around the room, which hasn't always been the case in my setup, and dialog was very clear throughout. I also enjoyed the big drums a bit more as I felt like I was able to distinguish their sounds better and more accurately than before. Overall, I think I can say that I am quite happy with the audio improvement with the addition of the bass traps, definitely worth the investment!